Home / 3,278.81-4,524.56-1,786.65

Finding the Fourth Proportional to 3,278.81, 4,524.56 and 1,786.65

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Solution

The fourth proportional to 3,278.81, 4,524.56 and 1,786.65 is: 2,465.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.81 : 4,524.56 = 1,786.65 : x
  2. Step 2: Convert to fraction form
    3,278.81/4,524.56 = 1,786.65/x
  3. Step 3: Cross multiply
    3,278.81x = 4,524.56 × 1,786.65
  4. Step 4: Simplify right side
    3,278.81x = 8,083,805.12
  5. Step 5: Solve for x
    x = 8,083,805.12/3,278.81
  6. Step 6: Final answer
    x = 2,465.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.