Home / 3,377.13-4,660.43-1,980.69

Finding the Fourth Proportional to 3,377.13, 4,660.43 and 1,980.69

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Solution

The fourth proportional to 3,377.13, 4,660.43 and 1,980.69 is: 2,733.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,377.13 : 4,660.43 = 1,980.69 : x
  2. Step 2: Convert to fraction form
    3,377.13/4,660.43 = 1,980.69/x
  3. Step 3: Cross multiply
    3,377.13x = 4,660.43 × 1,980.69
  4. Step 4: Simplify right side
    3,377.13x = 9,230,867.10
  5. Step 5: Solve for x
    x = 9,230,867.10/3,377.13
  6. Step 6: Final answer
    x = 2,733.35

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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.