Home / 1,038.49-1,433.12-566.39

Finding the Fourth Proportional to 1,038.49, 1,433.12 and 566.39

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Solution

The fourth proportional to 1,038.49, 1,433.12 and 566.39 is: 781.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038.49 : 1,433.12 = 566.39 : x
  2. Step 2: Convert to fraction form
    1,038.49/1,433.12 = 566.39/x
  3. Step 3: Cross multiply
    1,038.49x = 1,433.12 × 566.39
  4. Step 4: Simplify right side
    1,038.49x = 811,705.59
  5. Step 5: Solve for x
    x = 811,705.59/1,038.49
  6. Step 6: Final answer
    x = 781.62

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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.