Home / 5,243.57-7,236.12-2,885.71

Finding the Fourth Proportional to 5,243.57, 7,236.12 and 2,885.71

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Solution

The fourth proportional to 5,243.57, 7,236.12 and 2,885.71 is: 3,982.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.57 : 7,236.12 = 2,885.71 : x
  2. Step 2: Convert to fraction form
    5,243.57/7,236.12 = 2,885.71/x
  3. Step 3: Cross multiply
    5,243.57x = 7,236.12 × 2,885.71
  4. Step 4: Simplify right side
    5,243.57x = 20,881,343.85
  5. Step 5: Solve for x
    x = 20,881,343.85/5,243.57
  6. Step 6: Final answer
    x = 3,982.28

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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.