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Finding the Fourth Proportional to 1,712.72, 2,569.08 and 944.72

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Solution

The fourth proportional to 1,712.72, 2,569.08 and 944.72 is: 1,417.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.72 : 2,569.08 = 944.72 : x
  2. Step 2: Convert to fraction form
    1,712.72/2,569.08 = 944.72/x
  3. Step 3: Cross multiply
    1,712.72x = 2,569.08 × 944.72
  4. Step 4: Simplify right side
    1,712.72x = 2,427,061.26
  5. Step 5: Solve for x
    x = 2,427,061.26/1,712.72
  6. Step 6: Final answer
    x = 1,417.08

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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.