Home / 3,540.50-4,885.89-1,968.91

Finding the Fourth Proportional to 3,540.50, 4,885.89 and 1,968.91

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Solution

The fourth proportional to 3,540.50, 4,885.89 and 1,968.91 is: 2,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.50 : 4,885.89 = 1,968.91 : x
  2. Step 2: Convert to fraction form
    3,540.50/4,885.89 = 1,968.91/x
  3. Step 3: Cross multiply
    3,540.50x = 4,885.89 × 1,968.91
  4. Step 4: Simplify right side
    3,540.50x = 9,619,877.68
  5. Step 5: Solve for x
    x = 9,619,877.68/3,540.50
  6. Step 6: Final answer
    x = 2,717.10

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1.5x scale

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.