Home / 5,226.18-7,212.26-2,868.40

Finding the Fourth Proportional to 5,226.18, 7,212.26 and 2,868.40

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Solution

The fourth proportional to 5,226.18, 7,212.26 and 2,868.40 is: 3,958.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.18 : 7,212.26 = 2,868.40 : x
  2. Step 2: Convert to fraction form
    5,226.18/7,212.26 = 2,868.40/x
  3. Step 3: Cross multiply
    5,226.18x = 7,212.26 × 2,868.40
  4. Step 4: Simplify right side
    5,226.18x = 20,687,646.58
  5. Step 5: Solve for x
    x = 20,687,646.58/5,226.18
  6. Step 6: Final answer
    x = 3,958.46

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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.