Home / 3,938.34-5,905.71-1,471.35

Finding the Fourth Proportional to 3,938.34, 5,905.71 and 1,471.35

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Solution

The fourth proportional to 3,938.34, 5,905.71 and 1,471.35 is: 2,206.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.34 : 5,905.71 = 1,471.35 : x
  2. Step 2: Convert to fraction form
    3,938.34/5,905.71 = 1,471.35/x
  3. Step 3: Cross multiply
    3,938.34x = 5,905.71 × 1,471.35
  4. Step 4: Simplify right side
    3,938.34x = 8,689,366.41
  5. Step 5: Solve for x
    x = 8,689,366.41/3,938.34
  6. Step 6: Final answer
    x = 2,206.35

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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.