Home / 2,186.10-3,022.65-1,909.44

Finding the Fourth Proportional to 2,186.10, 3,022.65 and 1,909.44

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Solution

The fourth proportional to 2,186.10, 3,022.65 and 1,909.44 is: 2,640.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.10 : 3,022.65 = 1,909.44 : x
  2. Step 2: Convert to fraction form
    2,186.10/3,022.65 = 1,909.44/x
  3. Step 3: Cross multiply
    2,186.10x = 3,022.65 × 1,909.44
  4. Step 4: Simplify right side
    2,186.10x = 5,771,568.82
  5. Step 5: Solve for x
    x = 5,771,568.82/2,186.10
  6. Step 6: Final answer
    x = 2,640.12

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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.