Home / 2,098.14-3,146.60-637.72

Finding the Fourth Proportional to 2,098.14, 3,146.60 and 637.72

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Solution

The fourth proportional to 2,098.14, 3,146.60 and 637.72 is: 956.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,098.14 : 3,146.60 = 637.72 : x
  2. Step 2: Convert to fraction form
    2,098.14/3,146.60 = 637.72/x
  3. Step 3: Cross multiply
    2,098.14x = 3,146.60 × 637.72
  4. Step 4: Simplify right side
    2,098.14x = 2,006,649.75
  5. Step 5: Solve for x
    x = 2,006,649.75/2,098.14
  6. Step 6: Final answer
    x = 956.39

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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.