Home / 5,019.75-7,529.18-3,386.79

Finding the Fourth Proportional to 5,019.75, 7,529.18 and 3,386.79

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Solution

The fourth proportional to 5,019.75, 7,529.18 and 3,386.79 is: 5,079.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.75 : 7,529.18 = 3,386.79 : x
  2. Step 2: Convert to fraction form
    5,019.75/7,529.18 = 3,386.79/x
  3. Step 3: Cross multiply
    5,019.75x = 7,529.18 × 3,386.79
  4. Step 4: Simplify right side
    5,019.75x = 25,499,734.60
  5. Step 5: Solve for x
    x = 25,499,734.60/5,019.75
  6. Step 6: Final answer
    x = 5,079.88

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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.