Home / 3,520.56-5,280.84-1,180.38

Finding the Fourth Proportional to 3,520.56, 5,280.84 and 1,180.38

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Solution

The fourth proportional to 3,520.56, 5,280.84 and 1,180.38 is: 1,770.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.56 : 5,280.84 = 1,180.38 : x
  2. Step 2: Convert to fraction form
    3,520.56/5,280.84 = 1,180.38/x
  3. Step 3: Cross multiply
    3,520.56x = 5,280.84 × 1,180.38
  4. Step 4: Simplify right side
    3,520.56x = 6,233,397.92
  5. Step 5: Solve for x
    x = 6,233,397.92/3,520.56
  6. Step 6: Final answer
    x = 1,770.57

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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.