Home / 5,141.28-7,098.48-3,280.80

Finding the Fourth Proportional to 5,141.28, 7,098.48 and 3,280.80

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Solution

The fourth proportional to 5,141.28, 7,098.48 and 3,280.80 is: 4,529.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.28 : 7,098.48 = 3,280.80 : x
  2. Step 2: Convert to fraction form
    5,141.28/7,098.48 = 3,280.80/x
  3. Step 3: Cross multiply
    5,141.28x = 7,098.48 × 3,280.80
  4. Step 4: Simplify right side
    5,141.28x = 23,288,693.18
  5. Step 5: Solve for x
    x = 23,288,693.18/5,141.28
  6. Step 6: Final answer
    x = 4,529.75

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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.