Home / 1,862.09-2,787.35-1,724.79

Finding the Fourth Proportional to 1,862.09, 2,787.35 and 1,724.79

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Solution

The fourth proportional to 1,862.09, 2,787.35 and 1,724.79 is: 2,581.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.09 : 2,787.35 = 1,724.79 : x
  2. Step 2: Convert to fraction form
    1,862.09/2,787.35 = 1,724.79/x
  3. Step 3: Cross multiply
    1,862.09x = 2,787.35 × 1,724.79
  4. Step 4: Simplify right side
    1,862.09x = 4,807,593.41
  5. Step 5: Solve for x
    x = 4,807,593.41/1,862.09
  6. Step 6: Final answer
    x = 2,581.83

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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.