Home / 5,055.12-7,589.40-3,278.65

Finding the Fourth Proportional to 5,055.12, 7,589.40 and 3,278.65

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Solution

The fourth proportional to 5,055.12, 7,589.40 and 3,278.65 is: 4,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.12 : 7,589.40 = 3,278.65 : x
  2. Step 2: Convert to fraction form
    5,055.12/7,589.40 = 3,278.65/x
  3. Step 3: Cross multiply
    5,055.12x = 7,589.40 × 3,278.65
  4. Step 4: Simplify right side
    5,055.12x = 24,882,986.31
  5. Step 5: Solve for x
    x = 24,882,986.31/5,055.12
  6. Step 6: Final answer
    x = 4,922.33

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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.