Home / 5,255.28-7,877.60-3,407.57

Finding the Fourth Proportional to 5,255.28, 7,877.60 and 3,407.57

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Solution

The fourth proportional to 5,255.28, 7,877.60 and 3,407.57 is: 5,107.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.28 : 7,877.60 = 3,407.57 : x
  2. Step 2: Convert to fraction form
    5,255.28/7,877.60 = 3,407.57/x
  3. Step 3: Cross multiply
    5,255.28x = 7,877.60 × 3,407.57
  4. Step 4: Simplify right side
    5,255.28x = 26,843,478.49
  5. Step 5: Solve for x
    x = 26,843,478.49/5,255.28
  6. Step 6: Final answer
    x = 5,107.91

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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.