Home / 5,381.40-8,072.12-3,532.08

Finding the Fourth Proportional to 5,381.40, 8,072.12 and 3,532.08

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Solution

The fourth proportional to 5,381.40, 8,072.12 and 3,532.08 is: 5,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.40 : 8,072.12 = 3,532.08 : x
  2. Step 2: Convert to fraction form
    5,381.40/8,072.12 = 3,532.08/x
  3. Step 3: Cross multiply
    5,381.40x = 8,072.12 × 3,532.08
  4. Step 4: Simplify right side
    5,381.40x = 28,511,373.61
  5. Step 5: Solve for x
    x = 28,511,373.61/5,381.40
  6. Step 6: Final answer
    x = 5,298.13

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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.