Home / 5,079.38-7,620.30-1,616.63

Finding the Fourth Proportional to 5,079.38, 7,620.30 and 1,616.63

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Solution

The fourth proportional to 5,079.38, 7,620.30 and 1,616.63 is: 2,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.38 : 7,620.30 = 1,616.63 : x
  2. Step 2: Convert to fraction form
    5,079.38/7,620.30 = 1,616.63/x
  3. Step 3: Cross multiply
    5,079.38x = 7,620.30 × 1,616.63
  4. Step 4: Simplify right side
    5,079.38x = 12,319,167.49
  5. Step 5: Solve for x
    x = 12,319,167.49/5,079.38
  6. Step 6: Final answer
    x = 2,425.33

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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.