Home / 1,038.16-1,557.06-268.66

Finding the Fourth Proportional to 1,038.16, 1,557.06 and 268.66

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Solution

The fourth proportional to 1,038.16, 1,557.06 and 268.66 is: 402.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038.16 : 1,557.06 = 268.66 : x
  2. Step 2: Convert to fraction form
    1,038.16/1,557.06 = 268.66/x
  3. Step 3: Cross multiply
    1,038.16x = 1,557.06 × 268.66
  4. Step 4: Simplify right side
    1,038.16x = 418,319.74
  5. Step 5: Solve for x
    x = 418,319.74/1,038.16
  6. Step 6: Final answer
    x = 402.94

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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.