Home / 5,255.22-7,882.78-1,557.46

Finding the Fourth Proportional to 5,255.22, 7,882.78 and 1,557.46

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Solution

The fourth proportional to 5,255.22, 7,882.78 and 1,557.46 is: 2,336.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.22 : 7,882.78 = 1,557.46 : x
  2. Step 2: Convert to fraction form
    5,255.22/7,882.78 = 1,557.46/x
  3. Step 3: Cross multiply
    5,255.22x = 7,882.78 × 1,557.46
  4. Step 4: Simplify right side
    5,255.22x = 12,277,114.54
  5. Step 5: Solve for x
    x = 12,277,114.54/5,255.22
  6. Step 6: Final answer
    x = 2,336.18

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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.