Home / 5,451.48-8,177.16-1,555.90

Finding the Fourth Proportional to 5,451.48, 8,177.16 and 1,555.90

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Solution

The fourth proportional to 5,451.48, 8,177.16 and 1,555.90 is: 2,333.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.48 : 8,177.16 = 1,555.90 : x
  2. Step 2: Convert to fraction form
    5,451.48/8,177.16 = 1,555.90/x
  3. Step 3: Cross multiply
    5,451.48x = 8,177.16 × 1,555.90
  4. Step 4: Simplify right side
    5,451.48x = 12,722,843.24
  5. Step 5: Solve for x
    x = 12,722,843.24/5,451.48
  6. Step 6: Final answer
    x = 2,333.83

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1.5x scale

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.