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Finding the Fourth Proportional to 1,302.96, 1,952.52 and 938.52

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Solution

The fourth proportional to 1,302.96, 1,952.52 and 938.52 is: 1,406.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302.96 : 1,952.52 = 938.52 : x
  2. Step 2: Convert to fraction form
    1,302.96/1,952.52 = 938.52/x
  3. Step 3: Cross multiply
    1,302.96x = 1,952.52 × 938.52
  4. Step 4: Simplify right side
    1,302.96x = 1,832,479.07
  5. Step 5: Solve for x
    x = 1,832,479.07/1,302.96
  6. Step 6: Final answer
    x = 1,406.40

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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.