Home / 1,845.85-2,769.31-547.35

Finding the Fourth Proportional to 1,845.85, 2,769.31 and 547.35

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Solution

The fourth proportional to 1,845.85, 2,769.31 and 547.35 is: 821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.85 : 2,769.31 = 547.35 : x
  2. Step 2: Convert to fraction form
    1,845.85/2,769.31 = 547.35/x
  3. Step 3: Cross multiply
    1,845.85x = 2,769.31 × 547.35
  4. Step 4: Simplify right side
    1,845.85x = 1,515,781.83
  5. Step 5: Solve for x
    x = 1,515,781.83/1,845.85
  6. Step 6: Final answer
    x = 821.18

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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.