Home / 5,449.20-7,515.60-4,612.20

Finding the Fourth Proportional to 5,449.20, 7,515.60 and 4,612.20

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Solution

The fourth proportional to 5,449.20, 7,515.60 and 4,612.20 is: 6,361.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.20 : 7,515.60 = 4,612.20 : x
  2. Step 2: Convert to fraction form
    5,449.20/7,515.60 = 4,612.20/x
  3. Step 3: Cross multiply
    5,449.20x = 7,515.60 × 4,612.20
  4. Step 4: Simplify right side
    5,449.20x = 34,663,450.32
  5. Step 5: Solve for x
    x = 34,663,450.32/5,449.20
  6. Step 6: Final answer
    x = 6,361.20

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.