Home / 6,437.62-8,884.67-3,921.20

Finding the Fourth Proportional to 6,437.62, 8,884.67 and 3,921.20

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Solution

The fourth proportional to 6,437.62, 8,884.67 and 3,921.20 is: 5,411.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,437.62 : 8,884.67 = 3,921.20 : x
  2. Step 2: Convert to fraction form
    6,437.62/8,884.67 = 3,921.20/x
  3. Step 3: Cross multiply
    6,437.62x = 8,884.67 × 3,921.20
  4. Step 4: Simplify right side
    6,437.62x = 34,838,587.27
  5. Step 5: Solve for x
    x = 34,838,587.27/6,437.62
  6. Step 6: Final answer
    x = 5,411.72

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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.