Home / 6,240.78-8,610.21-4,117.37

Finding the Fourth Proportional to 6,240.78, 8,610.21 and 4,117.37

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Solution

The fourth proportional to 6,240.78, 8,610.21 and 4,117.37 is: 5,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.78 : 8,610.21 = 4,117.37 : x
  2. Step 2: Convert to fraction form
    6,240.78/8,610.21 = 4,117.37/x
  3. Step 3: Cross multiply
    6,240.78x = 8,610.21 × 4,117.37
  4. Step 4: Simplify right side
    6,240.78x = 35,451,377.30
  5. Step 5: Solve for x
    x = 35,451,377.30/6,240.78
  6. Step 6: Final answer
    x = 5,680.60

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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.