Home / 2,547.62-3,821.43-1,085.84

Finding the Fourth Proportional to 2,547.62, 3,821.43 and 1,085.84

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Solution

The fourth proportional to 2,547.62, 3,821.43 and 1,085.84 is: 1,628.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.62 : 3,821.43 = 1,085.84 : x
  2. Step 2: Convert to fraction form
    2,547.62/3,821.43 = 1,085.84/x
  3. Step 3: Cross multiply
    2,547.62x = 3,821.43 × 1,085.84
  4. Step 4: Simplify right side
    2,547.62x = 4,149,442.44
  5. Step 5: Solve for x
    x = 4,149,442.44/2,547.62
  6. Step 6: Final answer
    x = 1,628.76

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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.