Home / 5,087.92-7,021.40-2,849.77

Finding the Fourth Proportional to 5,087.92, 7,021.40 and 2,849.77

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Solution

The fourth proportional to 5,087.92, 7,021.40 and 2,849.77 is: 3,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.92 : 7,021.40 = 2,849.77 : x
  2. Step 2: Convert to fraction form
    5,087.92/7,021.40 = 2,849.77/x
  3. Step 3: Cross multiply
    5,087.92x = 7,021.40 × 2,849.77
  4. Step 4: Simplify right side
    5,087.92x = 20,009,375.08
  5. Step 5: Solve for x
    x = 20,009,375.08/5,087.92
  6. Step 6: Final answer
    x = 3,932.72

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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.