Home / 5,451.18-8,107.09-5,392.86

Finding the Fourth Proportional to 5,451.18, 8,107.09 and 5,392.86

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Solution

The fourth proportional to 5,451.18, 8,107.09 and 5,392.86 is: 8,020.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.18 : 8,107.09 = 5,392.86 : x
  2. Step 2: Convert to fraction form
    5,451.18/8,107.09 = 5,392.86/x
  3. Step 3: Cross multiply
    5,451.18x = 8,107.09 × 5,392.86
  4. Step 4: Simplify right side
    5,451.18x = 43,720,401.38
  5. Step 5: Solve for x
    x = 43,720,401.38/5,451.18
  6. Step 6: Final answer
    x = 8,020.36

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.