Home / 5,109.36-7,052.25-2,871.95

Finding the Fourth Proportional to 5,109.36, 7,052.25 and 2,871.95

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Solution

The fourth proportional to 5,109.36, 7,052.25 and 2,871.95 is: 3,964.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.36 : 7,052.25 = 2,871.95 : x
  2. Step 2: Convert to fraction form
    5,109.36/7,052.25 = 2,871.95/x
  3. Step 3: Cross multiply
    5,109.36x = 7,052.25 × 2,871.95
  4. Step 4: Simplify right side
    5,109.36x = 20,253,674.13
  5. Step 5: Solve for x
    x = 20,253,674.13/5,109.36
  6. Step 6: Final answer
    x = 3,964.03

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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.