Home / 1,752.10-2,419.00-1,331.71

Finding the Fourth Proportional to 1,752.10, 2,419.00 and 1,331.71

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Solution

The fourth proportional to 1,752.10, 2,419.00 and 1,331.71 is: 1,838.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752.10 : 2,419.00 = 1,331.71 : x
  2. Step 2: Convert to fraction form
    1,752.10/2,419.00 = 1,331.71/x
  3. Step 3: Cross multiply
    1,752.10x = 2,419.00 × 1,331.71
  4. Step 4: Simplify right side
    1,752.10x = 3,221,397.11
  5. Step 5: Solve for x
    x = 3,221,397.11/1,752.10
  6. Step 6: Final answer
    x = 1,838.59

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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.