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Finding the Fourth Proportional to 3,519.37, 4,857.06 and 1,947.97

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Solution

The fourth proportional to 3,519.37, 4,857.06 and 1,947.97 is: 2,688.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.37 : 4,857.06 = 1,947.97 : x
  2. Step 2: Convert to fraction form
    3,519.37/4,857.06 = 1,947.97/x
  3. Step 3: Cross multiply
    3,519.37x = 4,857.06 × 1,947.97
  4. Step 4: Simplify right side
    3,519.37x = 9,461,407.17
  5. Step 5: Solve for x
    x = 9,461,407.17/3,519.37
  6. Step 6: Final answer
    x = 2,688.38

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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.