Home / 3,520.31-5,280.47-1,180.13

Finding the Fourth Proportional to 3,520.31, 5,280.47 and 1,180.13

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Solution

The fourth proportional to 3,520.31, 5,280.47 and 1,180.13 is: 1,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.31 : 5,280.47 = 1,180.13 : x
  2. Step 2: Convert to fraction form
    3,520.31/5,280.47 = 1,180.13/x
  3. Step 3: Cross multiply
    3,520.31x = 5,280.47 × 1,180.13
  4. Step 4: Simplify right side
    3,520.31x = 6,231,635.16
  5. Step 5: Solve for x
    x = 6,231,635.16/3,520.31
  6. Step 6: Final answer
    x = 1,770.20

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,521.31, 5,281.97 and 1,181.13
Similar ratio
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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.