Home / 5,087.86-7,021.38-2,849.73

Finding the Fourth Proportional to 5,087.86, 7,021.38 and 2,849.73

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Solution

The fourth proportional to 5,087.86, 7,021.38 and 2,849.73 is: 3,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.86 : 7,021.38 = 2,849.73 : x
  2. Step 2: Convert to fraction form
    5,087.86/7,021.38 = 2,849.73/x
  3. Step 3: Cross multiply
    5,087.86x = 7,021.38 × 2,849.73
  4. Step 4: Simplify right side
    5,087.86x = 20,009,037.23
  5. Step 5: Solve for x
    x = 20,009,037.23/5,087.86
  6. Step 6: Final answer
    x = 3,932.70

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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.