Home / 3,275.66-4,913.87-1,085.78

Finding the Fourth Proportional to 3,275.66, 4,913.87 and 1,085.78

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Solution

The fourth proportional to 3,275.66, 4,913.87 and 1,085.78 is: 1,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.66 : 4,913.87 = 1,085.78 : x
  2. Step 2: Convert to fraction form
    3,275.66/4,913.87 = 1,085.78/x
  3. Step 3: Cross multiply
    3,275.66x = 4,913.87 × 1,085.78
  4. Step 4: Simplify right side
    3,275.66x = 5,335,381.77
  5. Step 5: Solve for x
    x = 5,335,381.77/3,275.66
  6. Step 6: Final answer
    x = 1,628.80

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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.