Home / 3,654.12-5,475.78-1,705.80

Finding the Fourth Proportional to 3,654.12, 5,475.78 and 1,705.80

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Solution

The fourth proportional to 3,654.12, 5,475.78 and 1,705.80 is: 2,556.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.12 : 5,475.78 = 1,705.80 : x
  2. Step 2: Convert to fraction form
    3,654.12/5,475.78 = 1,705.80/x
  3. Step 3: Cross multiply
    3,654.12x = 5,475.78 × 1,705.80
  4. Step 4: Simplify right side
    3,654.12x = 9,340,585.52
  5. Step 5: Solve for x
    x = 9,340,585.52/3,654.12
  6. Step 6: Final answer
    x = 2,556.18

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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.