Home / 5,058-7,581.33-3,821.40

Finding the Fourth Proportional to 5,058, 7,581.33 and 3,821.40

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Solution

The fourth proportional to 5,058, 7,581.33 and 3,821.40 is: 5,727.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,058 : 7,581.33 = 3,821.40 : x
  2. Step 2: Convert to fraction form
    5,058/7,581.33 = 3,821.40/x
  3. Step 3: Cross multiply
    5,058x = 7,581.33 × 3,821.40
  4. Step 4: Simplify right side
    5,058x = 28,971,294.46
  5. Step 5: Solve for x
    x = 28,971,294.46/5,058
  6. Step 6: Final answer
    x = 5,727.82

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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.