Home / 2,580.12-3,851.28-2,217.24

Finding the Fourth Proportional to 2,580.12, 3,851.28 and 2,217.24

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Solution

The fourth proportional to 2,580.12, 3,851.28 and 2,217.24 is: 3,309.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.12 : 3,851.28 = 2,217.24 : x
  2. Step 2: Convert to fraction form
    2,580.12/3,851.28 = 2,217.24/x
  3. Step 3: Cross multiply
    2,580.12x = 3,851.28 × 2,217.24
  4. Step 4: Simplify right side
    2,580.12x = 8,539,212.07
  5. Step 5: Solve for x
    x = 8,539,212.07/2,580.12
  6. Step 6: Final answer
    x = 3,309.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.