Home / 7,591.57-11,392.40-2,661.20

Finding the Fourth Proportional to 7,591.57, 11,392.40 and 2,661.20

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Solution

The fourth proportional to 7,591.57, 11,392.40 and 2,661.20 is: 3,993.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,591.57 : 11,392.40 = 2,661.20 : x
  2. Step 2: Convert to fraction form
    7,591.57/11,392.40 = 2,661.20/x
  3. Step 3: Cross multiply
    7,591.57x = 11,392.40 × 2,661.20
  4. Step 4: Simplify right side
    7,591.57x = 30,317,384.61
  5. Step 5: Solve for x
    x = 30,317,384.61/7,591.57
  6. Step 6: Final answer
    x = 3,993.56

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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.