Home / 1,348.20-2,022.56-424.02

Finding the Fourth Proportional to 1,348.20, 2,022.56 and 424.02

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Solution

The fourth proportional to 1,348.20, 2,022.56 and 424.02 is: 636.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.20 : 2,022.56 = 424.02 : x
  2. Step 2: Convert to fraction form
    1,348.20/2,022.56 = 424.02/x
  3. Step 3: Cross multiply
    1,348.20x = 2,022.56 × 424.02
  4. Step 4: Simplify right side
    1,348.20x = 857,605.89
  5. Step 5: Solve for x
    x = 857,605.89/1,348.20
  6. Step 6: Final answer
    x = 636.11

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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.