Home / 1,520.20-2,280.30-365.95

Finding the Fourth Proportional to 1,520.20, 2,280.30 and 365.95

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Solution

The fourth proportional to 1,520.20, 2,280.30 and 365.95 is: 548.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.20 : 2,280.30 = 365.95 : x
  2. Step 2: Convert to fraction form
    1,520.20/2,280.30 = 365.95/x
  3. Step 3: Cross multiply
    1,520.20x = 2,280.30 × 365.95
  4. Step 4: Simplify right side
    1,520.20x = 834,462.55
  5. Step 5: Solve for x
    x = 834,462.55/1,520.20
  6. Step 6: Final answer
    x = 548.92

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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.