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Finding the Fourth Proportional to 5,098.78, 7,648.16 and 1,401.02

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Solution

The fourth proportional to 5,098.78, 7,648.16 and 1,401.02 is: 2,101.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,098.78 : 7,648.16 = 1,401.02 : x
  2. Step 2: Convert to fraction form
    5,098.78/7,648.16 = 1,401.02/x
  3. Step 3: Cross multiply
    5,098.78x = 7,648.16 × 1,401.02
  4. Step 4: Simplify right side
    5,098.78x = 10,715,247.75
  5. Step 5: Solve for x
    x = 10,715,247.75/5,098.78
  6. Step 6: Final answer
    x = 2,101.53

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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.