Home / 3,309.47-4,555.60-2,861.13

Finding the Fourth Proportional to 3,309.47, 4,555.60 and 2,861.13

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Solution

The fourth proportional to 3,309.47, 4,555.60 and 2,861.13 is: 3,938.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.47 : 4,555.60 = 2,861.13 : x
  2. Step 2: Convert to fraction form
    3,309.47/4,555.60 = 2,861.13/x
  3. Step 3: Cross multiply
    3,309.47x = 4,555.60 × 2,861.13
  4. Step 4: Simplify right side
    3,309.47x = 13,034,163.83
  5. Step 5: Solve for x
    x = 13,034,163.83/3,309.47
  6. Step 6: Final answer
    x = 3,938.44

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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.