Home / 3,002.80-4,499.40-2,513.20

Finding the Fourth Proportional to 3,002.80, 4,499.40 and 2,513.20

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Solution

The fourth proportional to 3,002.80, 4,499.40 and 2,513.20 is: 3,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,002.80 : 4,499.40 = 2,513.20 : x
  2. Step 2: Convert to fraction form
    3,002.80/4,499.40 = 2,513.20/x
  3. Step 3: Cross multiply
    3,002.80x = 4,499.40 × 2,513.20
  4. Step 4: Simplify right side
    3,002.80x = 11,307,892.08
  5. Step 5: Solve for x
    x = 11,307,892.08/3,002.80
  6. Step 6: Final answer
    x = 3,765.78

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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.