Home / 5,125.61-7,073.06-2,887.43

Finding the Fourth Proportional to 5,125.61, 7,073.06 and 2,887.43

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Solution

The fourth proportional to 5,125.61, 7,073.06 and 2,887.43 is: 3,984.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.61 : 7,073.06 = 2,887.43 : x
  2. Step 2: Convert to fraction form
    5,125.61/7,073.06 = 2,887.43/x
  3. Step 3: Cross multiply
    5,125.61x = 7,073.06 × 2,887.43
  4. Step 4: Simplify right side
    5,125.61x = 20,422,915.83
  5. Step 5: Solve for x
    x = 20,422,915.83/5,125.61
  6. Step 6: Final answer
    x = 3,984.49

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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.