Home / 2,658.22-3,987.35-926.84

Finding the Fourth Proportional to 2,658.22, 3,987.35 and 926.84

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Solution

The fourth proportional to 2,658.22, 3,987.35 and 926.84 is: 1,390.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.22 : 3,987.35 = 926.84 : x
  2. Step 2: Convert to fraction form
    2,658.22/3,987.35 = 926.84/x
  3. Step 3: Cross multiply
    2,658.22x = 3,987.35 × 926.84
  4. Step 4: Simplify right side
    2,658.22x = 3,695,635.47
  5. Step 5: Solve for x
    x = 3,695,635.47/2,658.22
  6. Step 6: Final answer
    x = 1,390.27

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1.5x scale

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.