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Finding the Fourth Proportional to 3,417.78, 5,126.49 and 952.71

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Solution

The fourth proportional to 3,417.78, 5,126.49 and 952.71 is: 1,429.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.78 : 5,126.49 = 952.71 : x
  2. Step 2: Convert to fraction form
    3,417.78/5,126.49 = 952.71/x
  3. Step 3: Cross multiply
    3,417.78x = 5,126.49 × 952.71
  4. Step 4: Simplify right side
    3,417.78x = 4,884,058.29
  5. Step 5: Solve for x
    x = 4,884,058.29/3,417.78
  6. Step 6: Final answer
    x = 1,429.01

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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.