Home / 3,892.23-5,371.01-2,123.81

Finding the Fourth Proportional to 3,892.23, 5,371.01 and 2,123.81

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Solution

The fourth proportional to 3,892.23, 5,371.01 and 2,123.81 is: 2,930.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.23 : 5,371.01 = 2,123.81 : x
  2. Step 2: Convert to fraction form
    3,892.23/5,371.01 = 2,123.81/x
  3. Step 3: Cross multiply
    3,892.23x = 5,371.01 × 2,123.81
  4. Step 4: Simplify right side
    3,892.23x = 11,406,967.27
  5. Step 5: Solve for x
    x = 11,406,967.27/3,892.23
  6. Step 6: Final answer
    x = 2,930.70

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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.