Home / 2,789.71-3,849.53-1,611.16

Finding the Fourth Proportional to 2,789.71, 3,849.53 and 1,611.16

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Solution

The fourth proportional to 2,789.71, 3,849.53 and 1,611.16 is: 2,223.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.71 : 3,849.53 = 1,611.16 : x
  2. Step 2: Convert to fraction form
    2,789.71/3,849.53 = 1,611.16/x
  3. Step 3: Cross multiply
    2,789.71x = 3,849.53 × 1,611.16
  4. Step 4: Simplify right side
    2,789.71x = 6,202,191.08
  5. Step 5: Solve for x
    x = 6,202,191.08/2,789.71
  6. Step 6: Final answer
    x = 2,223.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.