Home / 3,705.12-5,556.06-1,107.45

Finding the Fourth Proportional to 3,705.12, 5,556.06 and 1,107.45

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Solution

The fourth proportional to 3,705.12, 5,556.06 and 1,107.45 is: 1,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.12 : 5,556.06 = 1,107.45 : x
  2. Step 2: Convert to fraction form
    3,705.12/5,556.06 = 1,107.45/x
  3. Step 3: Cross multiply
    3,705.12x = 5,556.06 × 1,107.45
  4. Step 4: Simplify right side
    3,705.12x = 6,153,083.64
  5. Step 5: Solve for x
    x = 6,153,083.64/3,705.12
  6. Step 6: Final answer
    x = 1,660.70

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1.5x scale

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.