Home / 2,658.24-3,987.16-926.87

Finding the Fourth Proportional to 2,658.24, 3,987.16 and 926.87

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Solution

The fourth proportional to 2,658.24, 3,987.16 and 926.87 is: 1,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.24 : 3,987.16 = 926.87 : x
  2. Step 2: Convert to fraction form
    2,658.24/3,987.16 = 926.87/x
  3. Step 3: Cross multiply
    2,658.24x = 3,987.16 × 926.87
  4. Step 4: Simplify right side
    2,658.24x = 3,695,556.74
  5. Step 5: Solve for x
    x = 3,695,556.74/2,658.24
  6. Step 6: Final answer
    x = 1,390.23

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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.