Home / 5,719.80-8,581.08-3,381.72

Finding the Fourth Proportional to 5,719.80, 8,581.08 and 3,381.72

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Solution

The fourth proportional to 5,719.80, 8,581.08 and 3,381.72 is: 5,073.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.80 : 8,581.08 = 3,381.72 : x
  2. Step 2: Convert to fraction form
    5,719.80/8,581.08 = 3,381.72/x
  3. Step 3: Cross multiply
    5,719.80x = 8,581.08 × 3,381.72
  4. Step 4: Simplify right side
    5,719.80x = 29,018,809.86
  5. Step 5: Solve for x
    x = 29,018,809.86/5,719.80
  6. Step 6: Final answer
    x = 5,073.40

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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.