Home / 2,287.22-3,429-2,158.43

Finding the Fourth Proportional to 2,287.22, 3,429 and 2,158.43

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Solution

The fourth proportional to 2,287.22, 3,429 and 2,158.43 is: 3,235.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.22 : 3,429 = 2,158.43 : x
  2. Step 2: Convert to fraction form
    2,287.22/3,429 = 2,158.43/x
  3. Step 3: Cross multiply
    2,287.22x = 3,429 × 2,158.43
  4. Step 4: Simplify right side
    2,287.22x = 7,401,256.47
  5. Step 5: Solve for x
    x = 7,401,256.47/2,287.22
  6. Step 6: Final answer
    x = 3,235.92

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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.