Home / 6,911.50-9,538.02-3,767.70

Finding the Fourth Proportional to 6,911.50, 9,538.02 and 3,767.70

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Solution

The fourth proportional to 6,911.50, 9,538.02 and 3,767.70 is: 5,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911.50 : 9,538.02 = 3,767.70 : x
  2. Step 2: Convert to fraction form
    6,911.50/9,538.02 = 3,767.70/x
  3. Step 3: Cross multiply
    6,911.50x = 9,538.02 × 3,767.70
  4. Step 4: Simplify right side
    6,911.50x = 35,936,397.95
  5. Step 5: Solve for x
    x = 35,936,397.95/6,911.50
  6. Step 6: Final answer
    x = 5,199.51

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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.