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Finding the Fourth Proportional to 2,948.28, 4,422.42 and 896.28

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Solution

The fourth proportional to 2,948.28, 4,422.42 and 896.28 is: 1,344.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.28 : 4,422.42 = 896.28 : x
  2. Step 2: Convert to fraction form
    2,948.28/4,422.42 = 896.28/x
  3. Step 3: Cross multiply
    2,948.28x = 4,422.42 × 896.28
  4. Step 4: Simplify right side
    2,948.28x = 3,963,726.60
  5. Step 5: Solve for x
    x = 3,963,726.60/2,948.28
  6. Step 6: Final answer
    x = 1,344.42

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1.5x scale

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.