Home / 7,387.87-11,078.55-2,767.63

Finding the Fourth Proportional to 7,387.87, 11,078.55 and 2,767.63

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Solution

The fourth proportional to 7,387.87, 11,078.55 and 2,767.63 is: 4,150.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.87 : 11,078.55 = 2,767.63 : x
  2. Step 2: Convert to fraction form
    7,387.87/11,078.55 = 2,767.63/x
  3. Step 3: Cross multiply
    7,387.87x = 11,078.55 × 2,767.63
  4. Step 4: Simplify right side
    7,387.87x = 30,661,327.34
  5. Step 5: Solve for x
    x = 30,661,327.34/7,387.87
  6. Step 6: Final answer
    x = 4,150.23

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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.