Home / 8,780.67-13,172.90-2,937.06

Finding the Fourth Proportional to 8,780.67, 13,172.90 and 2,937.06

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Solution

The fourth proportional to 8,780.67, 13,172.90 and 2,937.06 is: 4,406.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.67 : 13,172.90 = 2,937.06 : x
  2. Step 2: Convert to fraction form
    8,780.67/13,172.90 = 2,937.06/x
  3. Step 3: Cross multiply
    8,780.67x = 13,172.90 × 2,937.06
  4. Step 4: Simplify right side
    8,780.67x = 38,689,582.99
  5. Step 5: Solve for x
    x = 38,689,582.99/8,780.67
  6. Step 6: Final answer
    x = 4,406.22

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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.