Home / 5,087.70-7,021.02-2,849.64

Finding the Fourth Proportional to 5,087.70, 7,021.02 and 2,849.64

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Solution

The fourth proportional to 5,087.70, 7,021.02 and 2,849.64 is: 3,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.70 : 7,021.02 = 2,849.64 : x
  2. Step 2: Convert to fraction form
    5,087.70/7,021.02 = 2,849.64/x
  3. Step 3: Cross multiply
    5,087.70x = 7,021.02 × 2,849.64
  4. Step 4: Simplify right side
    5,087.70x = 20,007,379.43
  5. Step 5: Solve for x
    x = 20,007,379.43/5,087.70
  6. Step 6: Final answer
    x = 3,932.50

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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.