Home / 4,140.72-6,209.46-2,581.47

Finding the Fourth Proportional to 4,140.72, 6,209.46 and 2,581.47

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Solution

The fourth proportional to 4,140.72, 6,209.46 and 2,581.47 is: 3,871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.72 : 6,209.46 = 2,581.47 : x
  2. Step 2: Convert to fraction form
    4,140.72/6,209.46 = 2,581.47/x
  3. Step 3: Cross multiply
    4,140.72x = 6,209.46 × 2,581.47
  4. Step 4: Simplify right side
    4,140.72x = 16,029,534.71
  5. Step 5: Solve for x
    x = 16,029,534.71/4,140.72
  6. Step 6: Final answer
    x = 3,871.20

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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.