Home / 3,540-4,885.14-1,968.06

Finding the Fourth Proportional to 3,540, 4,885.14 and 1,968.06

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Solution

The fourth proportional to 3,540, 4,885.14 and 1,968.06 is: 2,715.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540 : 4,885.14 = 1,968.06 : x
  2. Step 2: Convert to fraction form
    3,540/4,885.14 = 1,968.06/x
  3. Step 3: Cross multiply
    3,540x = 4,885.14 × 1,968.06
  4. Step 4: Simplify right side
    3,540x = 9,614,248.63
  5. Step 5: Solve for x
    x = 9,614,248.63/3,540
  6. Step 6: Final answer
    x = 2,715.89

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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.