Home / 5,117.15-7,679.83-2,652.68

Finding the Fourth Proportional to 5,117.15, 7,679.83 and 2,652.68

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Solution

The fourth proportional to 5,117.15, 7,679.83 and 2,652.68 is: 3,981.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.15 : 7,679.83 = 2,652.68 : x
  2. Step 2: Convert to fraction form
    5,117.15/7,679.83 = 2,652.68/x
  3. Step 3: Cross multiply
    5,117.15x = 7,679.83 × 2,652.68
  4. Step 4: Simplify right side
    5,117.15x = 20,372,079.78
  5. Step 5: Solve for x
    x = 20,372,079.78/5,117.15
  6. Step 6: Final answer
    x = 3,981.14

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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.