Home / 3,918.72-5,869.08-2,271.18

Finding the Fourth Proportional to 3,918.72, 5,869.08 and 2,271.18

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Solution

The fourth proportional to 3,918.72, 5,869.08 and 2,271.18 is: 3,401.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.72 : 5,869.08 = 2,271.18 : x
  2. Step 2: Convert to fraction form
    3,918.72/5,869.08 = 2,271.18/x
  3. Step 3: Cross multiply
    3,918.72x = 5,869.08 × 2,271.18
  4. Step 4: Simplify right side
    3,918.72x = 13,329,737.11
  5. Step 5: Solve for x
    x = 13,329,737.11/3,918.72
  6. Step 6: Final answer
    x = 3,401.55

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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.