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Finding the Fourth Proportional to 1,416.34, 2,124.13 and 635.90

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Solution

The fourth proportional to 1,416.34, 2,124.13 and 635.90 is: 953.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.34 : 2,124.13 = 635.90 : x
  2. Step 2: Convert to fraction form
    1,416.34/2,124.13 = 635.90/x
  3. Step 3: Cross multiply
    1,416.34x = 2,124.13 × 635.90
  4. Step 4: Simplify right side
    1,416.34x = 1,350,735.06
  5. Step 5: Solve for x
    x = 1,350,735.06/1,416.34
  6. Step 6: Final answer
    x = 953.68

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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.