Home / 3,802.57-5,247.39-2,123.97

Finding the Fourth Proportional to 3,802.57, 5,247.39 and 2,123.97

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Solution

The fourth proportional to 3,802.57, 5,247.39 and 2,123.97 is: 2,930.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,802.57 : 5,247.39 = 2,123.97 : x
  2. Step 2: Convert to fraction form
    3,802.57/5,247.39 = 2,123.97/x
  3. Step 3: Cross multiply
    3,802.57x = 5,247.39 × 2,123.97
  4. Step 4: Simplify right side
    3,802.57x = 11,145,298.94
  5. Step 5: Solve for x
    x = 11,145,298.94/3,802.57
  6. Step 6: Final answer
    x = 2,930.99

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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.