Home / 1,905.55-2,628.82-1,119.24

Finding the Fourth Proportional to 1,905.55, 2,628.82 and 1,119.24

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Solution

The fourth proportional to 1,905.55, 2,628.82 and 1,119.24 is: 1,544.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.55 : 2,628.82 = 1,119.24 : x
  2. Step 2: Convert to fraction form
    1,905.55/2,628.82 = 1,119.24/x
  3. Step 3: Cross multiply
    1,905.55x = 2,628.82 × 1,119.24
  4. Step 4: Simplify right side
    1,905.55x = 2,942,281.90
  5. Step 5: Solve for x
    x = 2,942,281.90/1,905.55
  6. Step 6: Final answer
    x = 1,544.06

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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.