Home / 3,522.20-5,280.90-1,330.60

Finding the Fourth Proportional to 3,522.20, 5,280.90 and 1,330.60

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Solution

The fourth proportional to 3,522.20, 5,280.90 and 1,330.60 is: 1,994.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,522.20 : 5,280.90 = 1,330.60 : x
  2. Step 2: Convert to fraction form
    3,522.20/5,280.90 = 1,330.60/x
  3. Step 3: Cross multiply
    3,522.20x = 5,280.90 × 1,330.60
  4. Step 4: Simplify right side
    3,522.20x = 7,026,765.54
  5. Step 5: Solve for x
    x = 7,026,765.54/3,522.20
  6. Step 6: Final answer
    x = 1,994.99

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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.