Home / 5,247.04-7,865.68-1,781.88

Finding the Fourth Proportional to 5,247.04, 7,865.68 and 1,781.88

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Solution

The fourth proportional to 5,247.04, 7,865.68 and 1,781.88 is: 2,671.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.04 : 7,865.68 = 1,781.88 : x
  2. Step 2: Convert to fraction form
    5,247.04/7,865.68 = 1,781.88/x
  3. Step 3: Cross multiply
    5,247.04x = 7,865.68 × 1,781.88
  4. Step 4: Simplify right side
    5,247.04x = 14,015,697.88
  5. Step 5: Solve for x
    x = 14,015,697.88/5,247.04
  6. Step 6: Final answer
    x = 2,671.16

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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.