Home / 1,938.23-2,661.76-1,658.48

Finding the Fourth Proportional to 1,938.23, 2,661.76 and 1,658.48

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Solution

The fourth proportional to 1,938.23, 2,661.76 and 1,658.48 is: 2,277.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.23 : 2,661.76 = 1,658.48 : x
  2. Step 2: Convert to fraction form
    1,938.23/2,661.76 = 1,658.48/x
  3. Step 3: Cross multiply
    1,938.23x = 2,661.76 × 1,658.48
  4. Step 4: Simplify right side
    1,938.23x = 4,414,464.49
  5. Step 5: Solve for x
    x = 4,414,464.49/1,938.23
  6. Step 6: Final answer
    x = 2,277.58

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.