Home / 6,240.30-8,611.62-3,407.69

Finding the Fourth Proportional to 6,240.30, 8,611.62 and 3,407.69

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Solution

The fourth proportional to 6,240.30, 8,611.62 and 3,407.69 is: 4,702.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.30 : 8,611.62 = 3,407.69 : x
  2. Step 2: Convert to fraction form
    6,240.30/8,611.62 = 3,407.69/x
  3. Step 3: Cross multiply
    6,240.30x = 8,611.62 × 3,407.69
  4. Step 4: Simplify right side
    6,240.30x = 29,345,765.67
  5. Step 5: Solve for x
    x = 29,345,765.67/6,240.30
  6. Step 6: Final answer
    x = 4,702.62

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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.