Home / 2,382.07-3,572.75-921.04

Finding the Fourth Proportional to 2,382.07, 3,572.75 and 921.04

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Solution

The fourth proportional to 2,382.07, 3,572.75 and 921.04 is: 1,381.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.07 : 3,572.75 = 921.04 : x
  2. Step 2: Convert to fraction form
    2,382.07/3,572.75 = 921.04/x
  3. Step 3: Cross multiply
    2,382.07x = 3,572.75 × 921.04
  4. Step 4: Simplify right side
    2,382.07x = 3,290,641.05
  5. Step 5: Solve for x
    x = 3,290,641.05/2,382.07
  6. Step 6: Final answer
    x = 1,381.42

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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.