Home / 2,658.32-3,668.92-2,215.52

Finding the Fourth Proportional to 2,658.32, 3,668.92 and 2,215.52

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Solution

The fourth proportional to 2,658.32, 3,668.92 and 2,215.52 is: 3,057.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.32 : 3,668.92 = 2,215.52 : x
  2. Step 2: Convert to fraction form
    2,658.32/3,668.92 = 2,215.52/x
  3. Step 3: Cross multiply
    2,658.32x = 3,668.92 × 2,215.52
  4. Step 4: Simplify right side
    2,658.32x = 8,128,565.64
  5. Step 5: Solve for x
    x = 8,128,565.64/2,658.32
  6. Step 6: Final answer
    x = 3,057.78

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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.