Home / 2,587.91-3,878.76-1,199.36

Finding the Fourth Proportional to 2,587.91, 3,878.76 and 1,199.36

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Solution

The fourth proportional to 2,587.91, 3,878.76 and 1,199.36 is: 1,797.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.91 : 3,878.76 = 1,199.36 : x
  2. Step 2: Convert to fraction form
    2,587.91/3,878.76 = 1,199.36/x
  3. Step 3: Cross multiply
    2,587.91x = 3,878.76 × 1,199.36
  4. Step 4: Simplify right side
    2,587.91x = 4,652,029.59
  5. Step 5: Solve for x
    x = 4,652,029.59/2,587.91
  6. Step 6: Final answer
    x = 1,797.60

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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.