Home / 5,178.69-7,149.24-3,508.92

Finding the Fourth Proportional to 5,178.69, 7,149.24 and 3,508.92

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Solution

The fourth proportional to 5,178.69, 7,149.24 and 3,508.92 is: 4,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.69 : 7,149.24 = 3,508.92 : x
  2. Step 2: Convert to fraction form
    5,178.69/7,149.24 = 3,508.92/x
  3. Step 3: Cross multiply
    5,178.69x = 7,149.24 × 3,508.92
  4. Step 4: Simplify right side
    5,178.69x = 25,086,111.22
  5. Step 5: Solve for x
    x = 25,086,111.22/5,178.69
  6. Step 6: Final answer
    x = 4,844.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.