Home / 5,148.92-7,105.80-2,910.90

Finding the Fourth Proportional to 5,148.92, 7,105.80 and 2,910.90

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Solution

The fourth proportional to 5,148.92, 7,105.80 and 2,910.90 is: 4,017.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.92 : 7,105.80 = 2,910.90 : x
  2. Step 2: Convert to fraction form
    5,148.92/7,105.80 = 2,910.90/x
  3. Step 3: Cross multiply
    5,148.92x = 7,105.80 × 2,910.90
  4. Step 4: Simplify right side
    5,148.92x = 20,684,273.22
  5. Step 5: Solve for x
    x = 20,684,273.22/5,148.92
  6. Step 6: Final answer
    x = 4,017.21

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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.