Home / 5,286.21-7,294.92-3,162.69

Finding the Fourth Proportional to 5,286.21, 7,294.92 and 3,162.69

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Solution

The fourth proportional to 5,286.21, 7,294.92 and 3,162.69 is: 4,364.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.21 : 7,294.92 = 3,162.69 : x
  2. Step 2: Convert to fraction form
    5,286.21/7,294.92 = 3,162.69/x
  3. Step 3: Cross multiply
    5,286.21x = 7,294.92 × 3,162.69
  4. Step 4: Simplify right side
    5,286.21x = 23,071,570.53
  5. Step 5: Solve for x
    x = 23,071,570.53/5,286.21
  6. Step 6: Final answer
    x = 4,364.48

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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.