Home / 2,359.90-3,249.18-2,005.12

Finding the Fourth Proportional to 2,359.90, 3,249.18 and 2,005.12

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Solution

The fourth proportional to 2,359.90, 3,249.18 and 2,005.12 is: 2,760.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.90 : 3,249.18 = 2,005.12 : x
  2. Step 2: Convert to fraction form
    2,359.90/3,249.18 = 2,005.12/x
  3. Step 3: Cross multiply
    2,359.90x = 3,249.18 × 2,005.12
  4. Step 4: Simplify right side
    2,359.90x = 6,514,995.80
  5. Step 5: Solve for x
    x = 6,514,995.80/2,359.90
  6. Step 6: Final answer
    x = 2,760.71

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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.