Home / 6,238.76-8,607.43-4,115.35

Finding the Fourth Proportional to 6,238.76, 8,607.43 and 4,115.35

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Solution

The fourth proportional to 6,238.76, 8,607.43 and 4,115.35 is: 5,677.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,238.76 : 8,607.43 = 4,115.35 : x
  2. Step 2: Convert to fraction form
    6,238.76/8,607.43 = 4,115.35/x
  3. Step 3: Cross multiply
    6,238.76x = 8,607.43 × 4,115.35
  4. Step 4: Simplify right side
    6,238.76x = 35,422,561.38
  5. Step 5: Solve for x
    x = 35,422,561.38/6,238.76
  6. Step 6: Final answer
    x = 5,677.82

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Half scale
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Double scale
Find fourth proportional to 6,239.76, 8,608.81 and 4,116.35
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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.