Home / 2,658.24-3,958.65-2,590.20

Finding the Fourth Proportional to 2,658.24, 3,958.65 and 2,590.20

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Solution

The fourth proportional to 2,658.24, 3,958.65 and 2,590.20 is: 3,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.24 : 3,958.65 = 2,590.20 : x
  2. Step 2: Convert to fraction form
    2,658.24/3,958.65 = 2,590.20/x
  3. Step 3: Cross multiply
    2,658.24x = 3,958.65 × 2,590.20
  4. Step 4: Simplify right side
    2,658.24x = 10,253,695.23
  5. Step 5: Solve for x
    x = 10,253,695.23/2,658.24
  6. Step 6: Final answer
    x = 3,857.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.