Home / 5,125.29-7,072.92-2,887.26

Finding the Fourth Proportional to 5,125.29, 7,072.92 and 2,887.26

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Solution

The fourth proportional to 5,125.29, 7,072.92 and 2,887.26 is: 3,984.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.29 : 7,072.92 = 2,887.26 : x
  2. Step 2: Convert to fraction form
    5,125.29/7,072.92 = 2,887.26/x
  3. Step 3: Cross multiply
    5,125.29x = 7,072.92 × 2,887.26
  4. Step 4: Simplify right side
    5,125.29x = 20,421,359.00
  5. Step 5: Solve for x
    x = 20,421,359.00/5,125.29
  6. Step 6: Final answer
    x = 3,984.43

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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.