Home / 5,418-8,127.41-3,077.10

Finding the Fourth Proportional to 5,418, 8,127.41 and 3,077.10

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Solution

The fourth proportional to 5,418, 8,127.41 and 3,077.10 is: 4,615.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418 : 8,127.41 = 3,077.10 : x
  2. Step 2: Convert to fraction form
    5,418/8,127.41 = 3,077.10/x
  3. Step 3: Cross multiply
    5,418x = 8,127.41 × 3,077.10
  4. Step 4: Simplify right side
    5,418x = 25,008,853.31
  5. Step 5: Solve for x
    x = 25,008,853.31/5,418
  6. Step 6: Final answer
    x = 4,615.88

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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.