Home / 3,451.48-5,177.39-986.66

Finding the Fourth Proportional to 3,451.48, 5,177.39 and 986.66

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Solution

The fourth proportional to 3,451.48, 5,177.39 and 986.66 is: 1,480.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.48 : 5,177.39 = 986.66 : x
  2. Step 2: Convert to fraction form
    3,451.48/5,177.39 = 986.66/x
  3. Step 3: Cross multiply
    3,451.48x = 5,177.39 × 986.66
  4. Step 4: Simplify right side
    3,451.48x = 5,108,318.68
  5. Step 5: Solve for x
    x = 5,108,318.68/3,451.48
  6. Step 6: Final answer
    x = 1,480.04

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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.