Home / 5,389.20-7,436.16-3,031.44

Finding the Fourth Proportional to 5,389.20, 7,436.16 and 3,031.44

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Solution

The fourth proportional to 5,389.20, 7,436.16 and 3,031.44 is: 4,182.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.20 : 7,436.16 = 3,031.44 : x
  2. Step 2: Convert to fraction form
    5,389.20/7,436.16 = 3,031.44/x
  3. Step 3: Cross multiply
    5,389.20x = 7,436.16 × 3,031.44
  4. Step 4: Simplify right side
    5,389.20x = 22,542,272.87
  5. Step 5: Solve for x
    x = 22,542,272.87/5,389.20
  6. Step 6: Final answer
    x = 4,182.86

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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.