Home / 1,869.28-2,801.32-1,456.56

Finding the Fourth Proportional to 1,869.28, 2,801.32 and 1,456.56

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Solution

The fourth proportional to 1,869.28, 2,801.32 and 1,456.56 is: 2,182.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.28 : 2,801.32 = 1,456.56 : x
  2. Step 2: Convert to fraction form
    1,869.28/2,801.32 = 1,456.56/x
  3. Step 3: Cross multiply
    1,869.28x = 2,801.32 × 1,456.56
  4. Step 4: Simplify right side
    1,869.28x = 4,080,290.66
  5. Step 5: Solve for x
    x = 4,080,290.66/1,869.28
  6. Step 6: Final answer
    x = 2,182.81

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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.