Home / 6,187.72-9,282.78-1,805.20

Finding the Fourth Proportional to 6,187.72, 9,282.78 and 1,805.20

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Solution

The fourth proportional to 6,187.72, 9,282.78 and 1,805.20 is: 2,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,187.72 : 9,282.78 = 1,805.20 : x
  2. Step 2: Convert to fraction form
    6,187.72/9,282.78 = 1,805.20/x
  3. Step 3: Cross multiply
    6,187.72x = 9,282.78 × 1,805.20
  4. Step 4: Simplify right side
    6,187.72x = 16,757,274.46
  5. Step 5: Solve for x
    x = 16,757,274.46/6,187.72
  6. Step 6: Final answer
    x = 2,708.15

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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.