Home / 2,381.03-3,569.38-921.27

Finding the Fourth Proportional to 2,381.03, 3,569.38 and 921.27

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Solution

The fourth proportional to 2,381.03, 3,569.38 and 921.27 is: 1,381.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.03 : 3,569.38 = 921.27 : x
  2. Step 2: Convert to fraction form
    2,381.03/3,569.38 = 921.27/x
  3. Step 3: Cross multiply
    2,381.03x = 3,569.38 × 921.27
  4. Step 4: Simplify right side
    2,381.03x = 3,288,360.41
  5. Step 5: Solve for x
    x = 3,288,360.41/2,381.03
  6. Step 6: Final answer
    x = 1,381.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.