Home / 3,646.44-5,031.78-2,154.42

Finding the Fourth Proportional to 3,646.44, 5,031.78 and 2,154.42

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Solution

The fourth proportional to 3,646.44, 5,031.78 and 2,154.42 is: 2,972.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646.44 : 5,031.78 = 2,154.42 : x
  2. Step 2: Convert to fraction form
    3,646.44/5,031.78 = 2,154.42/x
  3. Step 3: Cross multiply
    3,646.44x = 5,031.78 × 2,154.42
  4. Step 4: Simplify right side
    3,646.44x = 10,840,567.47
  5. Step 5: Solve for x
    x = 10,840,567.47/3,646.44
  6. Step 6: Final answer
    x = 2,972.92

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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.