Home / 5,087.79-7,021.08-2,849.76

Finding the Fourth Proportional to 5,087.79, 7,021.08 and 2,849.76

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Solution

The fourth proportional to 5,087.79, 7,021.08 and 2,849.76 is: 3,932.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.79 : 7,021.08 = 2,849.76 : x
  2. Step 2: Convert to fraction form
    5,087.79/7,021.08 = 2,849.76/x
  3. Step 3: Cross multiply
    5,087.79x = 7,021.08 × 2,849.76
  4. Step 4: Simplify right side
    5,087.79x = 20,008,392.94
  5. Step 5: Solve for x
    x = 20,008,392.94/5,087.79
  6. Step 6: Final answer
    x = 3,932.63

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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.