Home / 2,287.80-3,154.14-1,587.96

Finding the Fourth Proportional to 2,287.80, 3,154.14 and 1,587.96

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Solution

The fourth proportional to 2,287.80, 3,154.14 and 1,587.96 is: 2,189.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.80 : 3,154.14 = 1,587.96 : x
  2. Step 2: Convert to fraction form
    2,287.80/3,154.14 = 1,587.96/x
  3. Step 3: Cross multiply
    2,287.80x = 3,154.14 × 1,587.96
  4. Step 4: Simplify right side
    2,287.80x = 5,008,648.15
  5. Step 5: Solve for x
    x = 5,008,648.15/2,287.80
  6. Step 6: Final answer
    x = 2,189.29

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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.