Home / 2,548.27-3,511.85-1,987.85

Finding the Fourth Proportional to 2,548.27, 3,511.85 and 1,987.85

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Solution

The fourth proportional to 2,548.27, 3,511.85 and 1,987.85 is: 2,739.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,548.27 : 3,511.85 = 1,987.85 : x
  2. Step 2: Convert to fraction form
    2,548.27/3,511.85 = 1,987.85/x
  3. Step 3: Cross multiply
    2,548.27x = 3,511.85 × 1,987.85
  4. Step 4: Simplify right side
    2,548.27x = 6,981,031.02
  5. Step 5: Solve for x
    x = 6,981,031.02/2,548.27
  6. Step 6: Final answer
    x = 2,739.52

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1.5x scale

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.