Home / 1,787.19-2,462.66-1,609.80

Finding the Fourth Proportional to 1,787.19, 2,462.66 and 1,609.80

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Solution

The fourth proportional to 1,787.19, 2,462.66 and 1,609.80 is: 2,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.19 : 2,462.66 = 1,609.80 : x
  2. Step 2: Convert to fraction form
    1,787.19/2,462.66 = 1,609.80/x
  3. Step 3: Cross multiply
    1,787.19x = 2,462.66 × 1,609.80
  4. Step 4: Simplify right side
    1,787.19x = 3,964,382.02
  5. Step 5: Solve for x
    x = 3,964,382.02/1,787.19
  6. Step 6: Final answer
    x = 2,218.22

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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.