Home / 3,527.40-5,286.30-2,879.40

Finding the Fourth Proportional to 3,527.40, 5,286.30 and 2,879.40

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Solution

The fourth proportional to 3,527.40, 5,286.30 and 2,879.40 is: 4,315.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,527.40 : 5,286.30 = 2,879.40 : x
  2. Step 2: Convert to fraction form
    3,527.40/5,286.30 = 2,879.40/x
  3. Step 3: Cross multiply
    3,527.40x = 5,286.30 × 2,879.40
  4. Step 4: Simplify right side
    3,527.40x = 15,221,372.22
  5. Step 5: Solve for x
    x = 15,221,372.22/3,527.40
  6. Step 6: Final answer
    x = 4,315.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.