Home / 6,140.76-8,474.19-3,487.61

Finding the Fourth Proportional to 6,140.76, 8,474.19 and 3,487.61

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Solution

The fourth proportional to 6,140.76, 8,474.19 and 3,487.61 is: 4,812.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.76 : 8,474.19 = 3,487.61 : x
  2. Step 2: Convert to fraction form
    6,140.76/8,474.19 = 3,487.61/x
  3. Step 3: Cross multiply
    6,140.76x = 8,474.19 × 3,487.61
  4. Step 4: Simplify right side
    6,140.76x = 29,554,627.41
  5. Step 5: Solve for x
    x = 29,554,627.41/6,140.76
  6. Step 6: Final answer
    x = 4,812.86

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Find fourth proportional to 3,070.38, 4,237.10 and 1,743.80
Half scale
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Double 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.