Home / 6,862.20-9,469.85-3,718.39

Finding the Fourth Proportional to 6,862.20, 9,469.85 and 3,718.39

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Solution

The fourth proportional to 6,862.20, 9,469.85 and 3,718.39 is: 5,131.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.20 : 9,469.85 = 3,718.39 : x
  2. Step 2: Convert to fraction form
    6,862.20/9,469.85 = 3,718.39/x
  3. Step 3: Cross multiply
    6,862.20x = 9,469.85 × 3,718.39
  4. Step 4: Simplify right side
    6,862.20x = 35,212,595.54
  5. Step 5: Solve for x
    x = 35,212,595.54/6,862.20
  6. Step 6: Final answer
    x = 5,131.39

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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.