Home / 5,314.92-7,961.40-3,117.03

Finding the Fourth Proportional to 5,314.92, 7,961.40 and 3,117.03

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Solution

The fourth proportional to 5,314.92, 7,961.40 and 3,117.03 is: 4,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,314.92 : 7,961.40 = 3,117.03 : x
  2. Step 2: Convert to fraction form
    5,314.92/7,961.40 = 3,117.03/x
  3. Step 3: Cross multiply
    5,314.92x = 7,961.40 × 3,117.03
  4. Step 4: Simplify right side
    5,314.92x = 24,815,922.64
  5. Step 5: Solve for x
    x = 24,815,922.64/5,314.92
  6. Step 6: Final answer
    x = 4,669.11

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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.