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Finding the Fourth Proportional to 3,708.68, 5,576.35 and 3,419.71

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Solution

The fourth proportional to 3,708.68, 5,576.35 and 3,419.71 is: 5,141.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.68 : 5,576.35 = 3,419.71 : x
  2. Step 2: Convert to fraction form
    3,708.68/5,576.35 = 3,419.71/x
  3. Step 3: Cross multiply
    3,708.68x = 5,576.35 × 3,419.71
  4. Step 4: Simplify right side
    3,708.68x = 19,069,471.98
  5. Step 5: Solve for x
    x = 19,069,471.98/3,708.68
  6. Step 6: Final answer
    x = 5,141.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.