Home / 5,372.49-8,060.78-2,087.90

Finding the Fourth Proportional to 5,372.49, 8,060.78 and 2,087.90

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Solution

The fourth proportional to 5,372.49, 8,060.78 and 2,087.90 is: 3,132.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372.49 : 8,060.78 = 2,087.90 : x
  2. Step 2: Convert to fraction form
    5,372.49/8,060.78 = 2,087.90/x
  3. Step 3: Cross multiply
    5,372.49x = 8,060.78 × 2,087.90
  4. Step 4: Simplify right side
    5,372.49x = 16,830,102.56
  5. Step 5: Solve for x
    x = 16,830,102.56/5,372.49
  6. Step 6: Final answer
    x = 3,132.64

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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.