Home / 5,434.60-8,149.44-2,147.16

Finding the Fourth Proportional to 5,434.60, 8,149.44 and 2,147.16

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Solution

The fourth proportional to 5,434.60, 8,149.44 and 2,147.16 is: 3,219.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,434.60 : 8,149.44 = 2,147.16 : x
  2. Step 2: Convert to fraction form
    5,434.60/8,149.44 = 2,147.16/x
  3. Step 3: Cross multiply
    5,434.60x = 8,149.44 × 2,147.16
  4. Step 4: Simplify right side
    5,434.60x = 17,498,151.59
  5. Step 5: Solve for x
    x = 17,498,151.59/5,434.60
  6. Step 6: Final answer
    x = 3,219.77

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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.