Home / 1,938.49-2,903.31-1,235.69

Finding the Fourth Proportional to 1,938.49, 2,903.31 and 1,235.69

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Solution

The fourth proportional to 1,938.49, 2,903.31 and 1,235.69 is: 1,850.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.49 : 2,903.31 = 1,235.69 : x
  2. Step 2: Convert to fraction form
    1,938.49/2,903.31 = 1,235.69/x
  3. Step 3: Cross multiply
    1,938.49x = 2,903.31 × 1,235.69
  4. Step 4: Simplify right side
    1,938.49x = 3,587,591.13
  5. Step 5: Solve for x
    x = 3,587,591.13/1,938.49
  6. Step 6: Final answer
    x = 1,850.72

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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.