Home / 3,275.91-4,915.68-1,085.28

Finding the Fourth Proportional to 3,275.91, 4,915.68 and 1,085.28

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Solution

The fourth proportional to 3,275.91, 4,915.68 and 1,085.28 is: 1,628.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.91 : 4,915.68 = 1,085.28 : x
  2. Step 2: Convert to fraction form
    3,275.91/4,915.68 = 1,085.28/x
  3. Step 3: Cross multiply
    3,275.91x = 4,915.68 × 1,085.28
  4. Step 4: Simplify right side
    3,275.91x = 5,334,889.19
  5. Step 5: Solve for x
    x = 5,334,889.19/3,275.91
  6. Step 6: Final answer
    x = 1,628.52

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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.