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Finding the Fourth Proportional to 3,759.95, 5,188.71 and 2,103.95

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Solution

The fourth proportional to 3,759.95, 5,188.71 and 2,103.95 is: 2,903.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.95 : 5,188.71 = 2,103.95 : x
  2. Step 2: Convert to fraction form
    3,759.95/5,188.71 = 2,103.95/x
  3. Step 3: Cross multiply
    3,759.95x = 5,188.71 × 2,103.95
  4. Step 4: Simplify right side
    3,759.95x = 10,916,760.46
  5. Step 5: Solve for x
    x = 10,916,760.46/3,759.95
  6. Step 6: Final answer
    x = 2,903.44

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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.