Home / 5,416.91-8,127.97-2,642.07

Finding the Fourth Proportional to 5,416.91, 8,127.97 and 2,642.07

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Solution

The fourth proportional to 5,416.91, 8,127.97 and 2,642.07 is: 3,964.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.91 : 8,127.97 = 2,642.07 : x
  2. Step 2: Convert to fraction form
    5,416.91/8,127.97 = 2,642.07/x
  3. Step 3: Cross multiply
    5,416.91x = 8,127.97 × 2,642.07
  4. Step 4: Simplify right side
    5,416.91x = 21,474,665.70
  5. Step 5: Solve for x
    x = 21,474,665.70/5,416.91
  6. Step 6: Final answer
    x = 3,964.38

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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.