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Finding the Fourth Proportional to 3,515.39, 4,851.05 and 1,943.38

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Solution

The fourth proportional to 3,515.39, 4,851.05 and 1,943.38 is: 2,681.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.39 : 4,851.05 = 1,943.38 : x
  2. Step 2: Convert to fraction form
    3,515.39/4,851.05 = 1,943.38/x
  3. Step 3: Cross multiply
    3,515.39x = 4,851.05 × 1,943.38
  4. Step 4: Simplify right side
    3,515.39x = 9,427,433.55
  5. Step 5: Solve for x
    x = 9,427,433.55/3,515.39
  6. Step 6: Final answer
    x = 2,681.76

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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.