Home / 8,780.61-13,172.72-2,937.27

Finding the Fourth Proportional to 8,780.61, 13,172.72 and 2,937.27

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Solution

The fourth proportional to 8,780.61, 13,172.72 and 2,937.27 is: 4,406.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.61 : 13,172.72 = 2,937.27 : x
  2. Step 2: Convert to fraction form
    8,780.61/13,172.72 = 2,937.27/x
  3. Step 3: Cross multiply
    8,780.61x = 13,172.72 × 2,937.27
  4. Step 4: Simplify right side
    8,780.61x = 38,691,820.59
  5. Step 5: Solve for x
    x = 38,691,820.59/8,780.61
  6. Step 6: Final answer
    x = 4,406.51

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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.