Home / 1,520.85-2,281.28-366.60

Finding the Fourth Proportional to 1,520.85, 2,281.28 and 366.60

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Solution

The fourth proportional to 1,520.85, 2,281.28 and 366.60 is: 549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.85 : 2,281.28 = 366.60 : x
  2. Step 2: Convert to fraction form
    1,520.85/2,281.28 = 366.60/x
  3. Step 3: Cross multiply
    1,520.85x = 2,281.28 × 366.60
  4. Step 4: Simplify right side
    1,520.85x = 836,322.49
  5. Step 5: Solve for x
    x = 836,322.49/1,520.85
  6. Step 6: Final answer
    x = 549.90

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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.