Home / 3,845.40-5,769-1,248.34

Finding the Fourth Proportional to 3,845.40, 5,769 and 1,248.34

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Solution

The fourth proportional to 3,845.40, 5,769 and 1,248.34 is: 1,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.40 : 5,769 = 1,248.34 : x
  2. Step 2: Convert to fraction form
    3,845.40/5,769 = 1,248.34/x
  3. Step 3: Cross multiply
    3,845.40x = 5,769 × 1,248.34
  4. Step 4: Simplify right side
    3,845.40x = 7,201,673.46
  5. Step 5: Solve for x
    x = 7,201,673.46/3,845.40
  6. Step 6: Final answer
    x = 1,872.80

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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.