Home / 5,424.90-7,486.22-3,186.72

Finding the Fourth Proportional to 5,424.90, 7,486.22 and 3,186.72

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Solution

The fourth proportional to 5,424.90, 7,486.22 and 3,186.72 is: 4,397.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.90 : 7,486.22 = 3,186.72 : x
  2. Step 2: Convert to fraction form
    5,424.90/7,486.22 = 3,186.72/x
  3. Step 3: Cross multiply
    5,424.90x = 7,486.22 × 3,186.72
  4. Step 4: Simplify right side
    5,424.90x = 23,856,473.91
  5. Step 5: Solve for x
    x = 23,856,473.91/5,424.90
  6. Step 6: Final answer
    x = 4,397.59

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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.