Home / 7,122.20-10,683.30-3,841.70

Finding the Fourth Proportional to 7,122.20, 10,683.30 and 3,841.70

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Solution

The fourth proportional to 7,122.20, 10,683.30 and 3,841.70 is: 5,762.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.20 : 10,683.30 = 3,841.70 : x
  2. Step 2: Convert to fraction form
    7,122.20/10,683.30 = 3,841.70/x
  3. Step 3: Cross multiply
    7,122.20x = 10,683.30 × 3,841.70
  4. Step 4: Simplify right side
    7,122.20x = 41,042,033.61
  5. Step 5: Solve for x
    x = 41,042,033.61/7,122.20
  6. Step 6: Final answer
    x = 5,762.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.