Home / 1,934.40-2,901.78-702.12

Finding the Fourth Proportional to 1,934.40, 2,901.78 and 702.12

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Solution

The fourth proportional to 1,934.40, 2,901.78 and 702.12 is: 1,053.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.40 : 2,901.78 = 702.12 : x
  2. Step 2: Convert to fraction form
    1,934.40/2,901.78 = 702.12/x
  3. Step 3: Cross multiply
    1,934.40x = 2,901.78 × 702.12
  4. Step 4: Simplify right side
    1,934.40x = 2,037,397.77
  5. Step 5: Solve for x
    x = 2,037,397.77/1,934.40
  6. Step 6: Final answer
    x = 1,053.25

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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.