Home / 6,462.28-8,918.91-3,945.85

Finding the Fourth Proportional to 6,462.28, 8,918.91 and 3,945.85

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Solution

The fourth proportional to 6,462.28, 8,918.91 and 3,945.85 is: 5,445.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,462.28 : 8,918.91 = 3,945.85 : x
  2. Step 2: Convert to fraction form
    6,462.28/8,918.91 = 3,945.85/x
  3. Step 3: Cross multiply
    6,462.28x = 8,918.91 × 3,945.85
  4. Step 4: Simplify right side
    6,462.28x = 35,192,681.02
  5. Step 5: Solve for x
    x = 35,192,681.02/6,462.28
  6. Step 6: Final answer
    x = 5,445.86

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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.