Home / 2,382.53-3,574.40-921.29

Finding the Fourth Proportional to 2,382.53, 3,574.40 and 921.29

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Solution

The fourth proportional to 2,382.53, 3,574.40 and 921.29 is: 1,382.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.53 : 3,574.40 = 921.29 : x
  2. Step 2: Convert to fraction form
    2,382.53/3,574.40 = 921.29/x
  3. Step 3: Cross multiply
    2,382.53x = 3,574.40 × 921.29
  4. Step 4: Simplify right side
    2,382.53x = 3,293,036.50
  5. Step 5: Solve for x
    x = 3,293,036.50/2,382.53
  6. Step 6: Final answer
    x = 1,382.16

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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.