Home / 6,239.38-8,610.36-3,406.78

Finding the Fourth Proportional to 6,239.38, 8,610.36 and 3,406.78

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Solution

The fourth proportional to 6,239.38, 8,610.36 and 3,406.78 is: 4,701.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.38 : 8,610.36 = 3,406.78 : x
  2. Step 2: Convert to fraction form
    6,239.38/8,610.36 = 3,406.78/x
  3. Step 3: Cross multiply
    6,239.38x = 8,610.36 × 3,406.78
  4. Step 4: Simplify right side
    6,239.38x = 29,333,602.24
  5. Step 5: Solve for x
    x = 29,333,602.24/6,239.38
  6. Step 6: Final answer
    x = 4,701.36

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Half scale
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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.