Home / 3,832.79-5,287.76-2,153.82

Finding the Fourth Proportional to 3,832.79, 5,287.76 and 2,153.82

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Solution

The fourth proportional to 3,832.79, 5,287.76 and 2,153.82 is: 2,971.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,832.79 : 5,287.76 = 2,153.82 : x
  2. Step 2: Convert to fraction form
    3,832.79/5,287.76 = 2,153.82/x
  3. Step 3: Cross multiply
    3,832.79x = 5,287.76 × 2,153.82
  4. Step 4: Simplify right side
    3,832.79x = 11,388,849.71
  5. Step 5: Solve for x
    x = 11,388,849.71/3,832.79
  6. Step 6: Final answer
    x = 2,971.42

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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.