Home / 7,280.28-10,902.60-3,385.80

Finding the Fourth Proportional to 7,280.28, 10,902.60 and 3,385.80

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Solution

The fourth proportional to 7,280.28, 10,902.60 and 3,385.80 is: 5,070.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.28 : 10,902.60 = 3,385.80 : x
  2. Step 2: Convert to fraction form
    7,280.28/10,902.60 = 3,385.80/x
  3. Step 3: Cross multiply
    7,280.28x = 10,902.60 × 3,385.80
  4. Step 4: Simplify right side
    7,280.28x = 36,914,023.08
  5. Step 5: Solve for x
    x = 36,914,023.08/7,280.28
  6. Step 6: Final answer
    x = 5,070.41

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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.