Home / 5,125.65-7,073.25-2,887.48

Finding the Fourth Proportional to 5,125.65, 7,073.25 and 2,887.48

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Solution

The fourth proportional to 5,125.65, 7,073.25 and 2,887.48 is: 3,984.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.65 : 7,073.25 = 2,887.48 : x
  2. Step 2: Convert to fraction form
    5,125.65/7,073.25 = 2,887.48/x
  3. Step 3: Cross multiply
    5,125.65x = 7,073.25 × 2,887.48
  4. Step 4: Simplify right side
    5,125.65x = 20,423,874.04
  5. Step 5: Solve for x
    x = 20,423,874.04/5,125.65
  6. Step 6: Final answer
    x = 3,984.64

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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.