Home / 3,138,454.80-4,707,682.20-2,221,719.10

Finding the Fourth Proportional to 3,138,454.80, 4,707,682.20 and 2,221,719.10

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Solution

The fourth proportional to 3,138,454.80, 4,707,682.20 and 2,221,719.10 is: 3,332,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,454.80 : 4,707,682.20 = 2,221,719.10 : x
  2. Step 2: Convert to fraction form
    3,138,454.80/4,707,682.20 = 2,221,719.10/x
  3. Step 3: Cross multiply
    3,138,454.80x = 4,707,682.20 × 2,221,719.10
  4. Step 4: Simplify right side
    3,138,454.80x = 10,459,147,460,470.02
  5. Step 5: Solve for x
    x = 10,459,147,460,470.02/3,138,454.80
  6. Step 6: Final answer
    x = 3,332,578.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.