Home / 5,144.97-7,100.25-3,155.16

Finding the Fourth Proportional to 5,144.97, 7,100.25 and 3,155.16

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Solution

The fourth proportional to 5,144.97, 7,100.25 and 3,155.16 is: 4,354.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.97 : 7,100.25 = 3,155.16 : x
  2. Step 2: Convert to fraction form
    5,144.97/7,100.25 = 3,155.16/x
  3. Step 3: Cross multiply
    5,144.97x = 7,100.25 × 3,155.16
  4. Step 4: Simplify right side
    5,144.97x = 22,402,424.79
  5. Step 5: Solve for x
    x = 22,402,424.79/5,144.97
  6. Step 6: Final answer
    x = 4,354.24

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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.