Home / 5,125.77-7,073.70-2,887.52

Finding the Fourth Proportional to 5,125.77, 7,073.70 and 2,887.52

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Solution

The fourth proportional to 5,125.77, 7,073.70 and 2,887.52 is: 3,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.77 : 7,073.70 = 2,887.52 : x
  2. Step 2: Convert to fraction form
    5,125.77/7,073.70 = 2,887.52/x
  3. Step 3: Cross multiply
    5,125.77x = 7,073.70 × 2,887.52
  4. Step 4: Simplify right side
    5,125.77x = 20,425,414.86
  5. Step 5: Solve for x
    x = 20,425,414.86/5,125.77
  6. Step 6: Final answer
    x = 3,984.85

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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.