Home / 5,111.13-7,679.67-4,767.15

Finding the Fourth Proportional to 5,111.13, 7,679.67 and 4,767.15

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Solution

The fourth proportional to 5,111.13, 7,679.67 and 4,767.15 is: 7,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.13 : 7,679.67 = 4,767.15 : x
  2. Step 2: Convert to fraction form
    5,111.13/7,679.67 = 4,767.15/x
  3. Step 3: Cross multiply
    5,111.13x = 7,679.67 × 4,767.15
  4. Step 4: Simplify right side
    5,111.13x = 36,610,138.84
  5. Step 5: Solve for x
    x = 36,610,138.84/5,111.13
  6. Step 6: Final answer
    x = 7,162.83

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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.