Home / 3,964.12-5,470.74-2,285.50

Finding the Fourth Proportional to 3,964.12, 5,470.74 and 2,285.50

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Solution

The fourth proportional to 3,964.12, 5,470.74 and 2,285.50 is: 3,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.12 : 5,470.74 = 2,285.50 : x
  2. Step 2: Convert to fraction form
    3,964.12/5,470.74 = 2,285.50/x
  3. Step 3: Cross multiply
    3,964.12x = 5,470.74 × 2,285.50
  4. Step 4: Simplify right side
    3,964.12x = 12,503,376.27
  5. Step 5: Solve for x
    x = 12,503,376.27/3,964.12
  6. Step 6: Final answer
    x = 3,154.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.