Home / 3,275.16-4,913.12-1,085.28

Finding the Fourth Proportional to 3,275.16, 4,913.12 and 1,085.28

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Solution

The fourth proportional to 3,275.16, 4,913.12 and 1,085.28 is: 1,628.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.16 : 4,913.12 = 1,085.28 : x
  2. Step 2: Convert to fraction form
    3,275.16/4,913.12 = 1,085.28/x
  3. Step 3: Cross multiply
    3,275.16x = 4,913.12 × 1,085.28
  4. Step 4: Simplify right side
    3,275.16x = 5,332,110.87
  5. Step 5: Solve for x
    x = 5,332,110.87/3,275.16
  6. Step 6: Final answer
    x = 1,628.05

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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.