Home / 5,520.40-8,280.60-2,401.90

Finding the Fourth Proportional to 5,520.40, 8,280.60 and 2,401.90

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Solution

The fourth proportional to 5,520.40, 8,280.60 and 2,401.90 is: 3,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.40 : 8,280.60 = 2,401.90 : x
  2. Step 2: Convert to fraction form
    5,520.40/8,280.60 = 2,401.90/x
  3. Step 3: Cross multiply
    5,520.40x = 8,280.60 × 2,401.90
  4. Step 4: Simplify right side
    5,520.40x = 19,889,173.14
  5. Step 5: Solve for x
    x = 19,889,173.14/5,520.40
  6. Step 6: Final answer
    x = 3,602.85

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Double scale
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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.