Home / 7,527.20-11,290.80-3,369.20

Finding the Fourth Proportional to 7,527.20, 11,290.80 and 3,369.20

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Solution

The fourth proportional to 7,527.20, 11,290.80 and 3,369.20 is: 5,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,527.20 : 11,290.80 = 3,369.20 : x
  2. Step 2: Convert to fraction form
    7,527.20/11,290.80 = 3,369.20/x
  3. Step 3: Cross multiply
    7,527.20x = 11,290.80 × 3,369.20
  4. Step 4: Simplify right side
    7,527.20x = 38,040,963.36
  5. Step 5: Solve for x
    x = 38,040,963.36/7,527.20
  6. Step 6: Final answer
    x = 5,053.80

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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.