Home / 7,167.16-10,742.49-2,780.91

Finding the Fourth Proportional to 7,167.16, 10,742.49 and 2,780.91

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Solution

The fourth proportional to 7,167.16, 10,742.49 and 2,780.91 is: 4,168.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167.16 : 10,742.49 = 2,780.91 : x
  2. Step 2: Convert to fraction form
    7,167.16/10,742.49 = 2,780.91/x
  3. Step 3: Cross multiply
    7,167.16x = 10,742.49 × 2,780.91
  4. Step 4: Simplify right side
    7,167.16x = 29,873,897.87
  5. Step 5: Solve for x
    x = 29,873,897.87/7,167.16
  6. Step 6: Final answer
    x = 4,168.16

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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.