Home / 5,112.93-7,660.17-4,122.63

Finding the Fourth Proportional to 5,112.93, 7,660.17 and 4,122.63

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Solution

The fourth proportional to 5,112.93, 7,660.17 and 4,122.63 is: 6,176.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.93 : 7,660.17 = 4,122.63 : x
  2. Step 2: Convert to fraction form
    5,112.93/7,660.17 = 4,122.63/x
  3. Step 3: Cross multiply
    5,112.93x = 7,660.17 × 4,122.63
  4. Step 4: Simplify right side
    5,112.93x = 31,580,046.65
  5. Step 5: Solve for x
    x = 31,580,046.65/5,112.93
  6. Step 6: Final answer
    x = 6,176.51

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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.