Home / 5,087.42-7,020.79-2,849.29

Finding the Fourth Proportional to 5,087.42, 7,020.79 and 2,849.29

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Solution

The fourth proportional to 5,087.42, 7,020.79 and 2,849.29 is: 3,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.42 : 7,020.79 = 2,849.29 : x
  2. Step 2: Convert to fraction form
    5,087.42/7,020.79 = 2,849.29/x
  3. Step 3: Cross multiply
    5,087.42x = 7,020.79 × 2,849.29
  4. Step 4: Simplify right side
    5,087.42x = 20,004,224.51
  5. Step 5: Solve for x
    x = 20,004,224.51/5,087.42
  6. Step 6: Final answer
    x = 3,932.10

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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.