Home / 5,720.10-8,581.89-2,720.42

Finding the Fourth Proportional to 5,720.10, 8,581.89 and 2,720.42

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Solution

The fourth proportional to 5,720.10, 8,581.89 and 2,720.42 is: 4,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.10 : 8,581.89 = 2,720.42 : x
  2. Step 2: Convert to fraction form
    5,720.10/8,581.89 = 2,720.42/x
  3. Step 3: Cross multiply
    5,720.10x = 8,581.89 × 2,720.42
  4. Step 4: Simplify right side
    5,720.10x = 23,346,302.28
  5. Step 5: Solve for x
    x = 23,346,302.28/5,720.10
  6. Step 6: Final answer
    x = 4,081.45

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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.