Home / 5,159.12-7,114.68-3,480.80

Finding the Fourth Proportional to 5,159.12, 7,114.68 and 3,480.80

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Solution

The fourth proportional to 5,159.12, 7,114.68 and 3,480.80 is: 4,800.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.12 : 7,114.68 = 3,480.80 : x
  2. Step 2: Convert to fraction form
    5,159.12/7,114.68 = 3,480.80/x
  3. Step 3: Cross multiply
    5,159.12x = 7,114.68 × 3,480.80
  4. Step 4: Simplify right side
    5,159.12x = 24,764,778.14
  5. Step 5: Solve for x
    x = 24,764,778.14/5,159.12
  6. Step 6: Final answer
    x = 4,800.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.