Home / 5,226.28-7,212.30-2,868.40

Finding the Fourth Proportional to 5,226.28, 7,212.30 and 2,868.40

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Solution

The fourth proportional to 5,226.28, 7,212.30 and 2,868.40 is: 3,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.28 : 7,212.30 = 2,868.40 : x
  2. Step 2: Convert to fraction form
    5,226.28/7,212.30 = 2,868.40/x
  3. Step 3: Cross multiply
    5,226.28x = 7,212.30 × 2,868.40
  4. Step 4: Simplify right side
    5,226.28x = 20,687,761.32
  5. Step 5: Solve for x
    x = 20,687,761.32/5,226.28
  6. Step 6: Final answer
    x = 3,958.41

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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.