Home / 5,781.18-8,670.81-2,082.66

Finding the Fourth Proportional to 5,781.18, 8,670.81 and 2,082.66

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Solution

The fourth proportional to 5,781.18, 8,670.81 and 2,082.66 is: 3,123.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,781.18 : 8,670.81 = 2,082.66 : x
  2. Step 2: Convert to fraction form
    5,781.18/8,670.81 = 2,082.66/x
  3. Step 3: Cross multiply
    5,781.18x = 8,670.81 × 2,082.66
  4. Step 4: Simplify right side
    5,781.18x = 18,058,349.15
  5. Step 5: Solve for x
    x = 18,058,349.15/5,781.18
  6. Step 6: Final answer
    x = 3,123.64

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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.