Home / 5,451.40-8,177.48-1,555.84

Finding the Fourth Proportional to 5,451.40, 8,177.48 and 1,555.84

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Solution

The fourth proportional to 5,451.40, 8,177.48 and 1,555.84 is: 2,333.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.40 : 8,177.48 = 1,555.84 : x
  2. Step 2: Convert to fraction form
    5,451.40/8,177.48 = 1,555.84/x
  3. Step 3: Cross multiply
    5,451.40x = 8,177.48 × 1,555.84
  4. Step 4: Simplify right side
    5,451.40x = 12,722,850.48
  5. Step 5: Solve for x
    x = 12,722,850.48/5,451.40
  6. Step 6: Final answer
    x = 2,333.87

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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.