Home / 5,417.70-8,119.89-3,079.66

Finding the Fourth Proportional to 5,417.70, 8,119.89 and 3,079.66

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Solution

The fourth proportional to 5,417.70, 8,119.89 and 3,079.66 is: 4,615.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.70 : 8,119.89 = 3,079.66 : x
  2. Step 2: Convert to fraction form
    5,417.70/8,119.89 = 3,079.66/x
  3. Step 3: Cross multiply
    5,417.70x = 8,119.89 × 3,079.66
  4. Step 4: Simplify right side
    5,417.70x = 25,006,487.84
  5. Step 5: Solve for x
    x = 25,006,487.84/5,417.70
  6. Step 6: Final answer
    x = 4,615.71

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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.