Home / 5,207.76-7,187.13-3,112.29

Finding the Fourth Proportional to 5,207.76, 7,187.13 and 3,112.29

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Solution

The fourth proportional to 5,207.76, 7,187.13 and 3,112.29 is: 4,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.76 : 7,187.13 = 3,112.29 : x
  2. Step 2: Convert to fraction form
    5,207.76/7,187.13 = 3,112.29/x
  3. Step 3: Cross multiply
    5,207.76x = 7,187.13 × 3,112.29
  4. Step 4: Simplify right side
    5,207.76x = 22,368,432.83
  5. Step 5: Solve for x
    x = 22,368,432.83/5,207.76
  6. Step 6: Final answer
    x = 4,295.21

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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.