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Finding the Fourth Proportional to 2,547.11, 3,823.03 and 1,087.29

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Solution

The fourth proportional to 2,547.11, 3,823.03 and 1,087.29 is: 1,631.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.11 : 3,823.03 = 1,087.29 : x
  2. Step 2: Convert to fraction form
    2,547.11/3,823.03 = 1,087.29/x
  3. Step 3: Cross multiply
    2,547.11x = 3,823.03 × 1,087.29
  4. Step 4: Simplify right side
    2,547.11x = 4,156,743.65
  5. Step 5: Solve for x
    x = 4,156,743.65/2,547.11
  6. Step 6: Final answer
    x = 1,631.94

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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.