Home / 3,871.08-5,344.38-2,547

Finding the Fourth Proportional to 3,871.08, 5,344.38 and 2,547

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Solution

The fourth proportional to 3,871.08, 5,344.38 and 2,547 is: 3,516.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.08 : 5,344.38 = 2,547 : x
  2. Step 2: Convert to fraction form
    3,871.08/5,344.38 = 2,547/x
  3. Step 3: Cross multiply
    3,871.08x = 5,344.38 × 2,547
  4. Step 4: Simplify right side
    3,871.08x = 13,612,135.86
  5. Step 5: Solve for x
    x = 13,612,135.86/3,871.08
  6. Step 6: Final answer
    x = 3,516.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.