Home / 10,287.88-15,431.75-2,892.29

Finding the Fourth Proportional to 10,287.88, 15,431.75 and 2,892.29

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Solution

The fourth proportional to 10,287.88, 15,431.75 and 2,892.29 is: 4,338.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287.88 : 15,431.75 = 2,892.29 : x
  2. Step 2: Convert to fraction form
    10,287.88/15,431.75 = 2,892.29/x
  3. Step 3: Cross multiply
    10,287.88x = 15,431.75 × 2,892.29
  4. Step 4: Simplify right side
    10,287.88x = 44,633,096.21
  5. Step 5: Solve for x
    x = 44,633,096.21/10,287.88
  6. Step 6: Final answer
    x = 4,338.42

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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.