Home / 5,317.44-7,339.04-3,989.12

Finding the Fourth Proportional to 5,317.44, 7,339.04 and 3,989.12

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Solution

The fourth proportional to 5,317.44, 7,339.04 and 3,989.12 is: 5,505.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.44 : 7,339.04 = 3,989.12 : x
  2. Step 2: Convert to fraction form
    5,317.44/7,339.04 = 3,989.12/x
  3. Step 3: Cross multiply
    5,317.44x = 7,339.04 × 3,989.12
  4. Step 4: Simplify right side
    5,317.44x = 29,276,311.24
  5. Step 5: Solve for x
    x = 29,276,311.24/5,317.44
  6. Step 6: Final answer
    x = 5,505.72

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Double scale
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Similar ratio
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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.