Home / 3,585.11-5,378.75-1,120.19

Finding the Fourth Proportional to 3,585.11, 5,378.75 and 1,120.19

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Solution

The fourth proportional to 3,585.11, 5,378.75 and 1,120.19 is: 1,680.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.11 : 5,378.75 = 1,120.19 : x
  2. Step 2: Convert to fraction form
    3,585.11/5,378.75 = 1,120.19/x
  3. Step 3: Cross multiply
    3,585.11x = 5,378.75 × 1,120.19
  4. Step 4: Simplify right side
    3,585.11x = 6,025,221.96
  5. Step 5: Solve for x
    x = 6,025,221.96/3,585.11
  6. Step 6: Final answer
    x = 1,680.62

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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.