Home / 3,440.28-4,747.56-1,948.04

Finding the Fourth Proportional to 3,440.28, 4,747.56 and 1,948.04

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Solution

The fourth proportional to 3,440.28, 4,747.56 and 1,948.04 is: 2,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.28 : 4,747.56 = 1,948.04 : x
  2. Step 2: Convert to fraction form
    3,440.28/4,747.56 = 1,948.04/x
  3. Step 3: Cross multiply
    3,440.28x = 4,747.56 × 1,948.04
  4. Step 4: Simplify right side
    3,440.28x = 9,248,436.78
  5. Step 5: Solve for x
    x = 9,248,436.78/3,440.28
  6. Step 6: Final answer
    x = 2,688.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.