Home / 2,587.04-3,876.96-1,354.40

Finding the Fourth Proportional to 2,587.04, 3,876.96 and 1,354.40

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Solution

The fourth proportional to 2,587.04, 3,876.96 and 1,354.40 is: 2,029.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.04 : 3,876.96 = 1,354.40 : x
  2. Step 2: Convert to fraction form
    2,587.04/3,876.96 = 1,354.40/x
  3. Step 3: Cross multiply
    2,587.04x = 3,876.96 × 1,354.40
  4. Step 4: Simplify right side
    2,587.04x = 5,250,954.62
  5. Step 5: Solve for x
    x = 5,250,954.62/2,587.04
  6. Step 6: Final answer
    x = 2,029.72

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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.