Home / 5,320.76-7,340.75-3,081.42

Finding the Fourth Proportional to 5,320.76, 7,340.75 and 3,081.42

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Solution

The fourth proportional to 5,320.76, 7,340.75 and 3,081.42 is: 4,251.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.76 : 7,340.75 = 3,081.42 : x
  2. Step 2: Convert to fraction form
    5,320.76/7,340.75 = 3,081.42/x
  3. Step 3: Cross multiply
    5,320.76x = 7,340.75 × 3,081.42
  4. Step 4: Simplify right side
    5,320.76x = 22,619,933.87
  5. Step 5: Solve for x
    x = 22,619,933.87/5,320.76
  6. Step 6: Final answer
    x = 4,251.26

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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.