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Finding the Fourth Proportional to 1,708.08, 2,560.16 and 734.72

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Solution

The fourth proportional to 1,708.08, 2,560.16 and 734.72 is: 1,101.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.08 : 2,560.16 = 734.72 : x
  2. Step 2: Convert to fraction form
    1,708.08/2,560.16 = 734.72/x
  3. Step 3: Cross multiply
    1,708.08x = 2,560.16 × 734.72
  4. Step 4: Simplify right side
    1,708.08x = 1,881,000.76
  5. Step 5: Solve for x
    x = 1,881,000.76/1,708.08
  6. Step 6: Final answer
    x = 1,101.24

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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.