Home / 1,919.14-2,646.83-1,353.84

Finding the Fourth Proportional to 1,919.14, 2,646.83 and 1,353.84

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Solution

The fourth proportional to 1,919.14, 2,646.83 and 1,353.84 is: 1,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.14 : 2,646.83 = 1,353.84 : x
  2. Step 2: Convert to fraction form
    1,919.14/2,646.83 = 1,353.84/x
  3. Step 3: Cross multiply
    1,919.14x = 2,646.83 × 1,353.84
  4. Step 4: Simplify right side
    1,919.14x = 3,583,377.62
  5. Step 5: Solve for x
    x = 3,583,377.62/1,919.14
  6. Step 6: Final answer
    x = 1,867.18

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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.