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Finding the Fourth Proportional to 5,005.56, 7,508.10 and 1,718.52

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Solution

The fourth proportional to 5,005.56, 7,508.10 and 1,718.52 is: 2,577.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.56 : 7,508.10 = 1,718.52 : x
  2. Step 2: Convert to fraction form
    5,005.56/7,508.10 = 1,718.52/x
  3. Step 3: Cross multiply
    5,005.56x = 7,508.10 × 1,718.52
  4. Step 4: Simplify right side
    5,005.56x = 12,902,820.01
  5. Step 5: Solve for x
    x = 12,902,820.01/5,005.56
  6. Step 6: Final answer
    x = 2,577.70

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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.