Home / 2,127.96-2,934.81-1,371.87

Finding the Fourth Proportional to 2,127.96, 2,934.81 and 1,371.87

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Solution

The fourth proportional to 2,127.96, 2,934.81 and 1,371.87 is: 1,892.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.96 : 2,934.81 = 1,371.87 : x
  2. Step 2: Convert to fraction form
    2,127.96/2,934.81 = 1,371.87/x
  3. Step 3: Cross multiply
    2,127.96x = 2,934.81 × 1,371.87
  4. Step 4: Simplify right side
    2,127.96x = 4,026,177.79
  5. Step 5: Solve for x
    x = 4,026,177.79/2,127.96
  6. Step 6: Final answer
    x = 1,892.04

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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.