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Finding the Fourth Proportional to 2,043.45, 3,065.31 and 744.75

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Solution

The fourth proportional to 2,043.45, 3,065.31 and 744.75 is: 1,117.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,043.45 : 3,065.31 = 744.75 : x
  2. Step 2: Convert to fraction form
    2,043.45/3,065.31 = 744.75/x
  3. Step 3: Cross multiply
    2,043.45x = 3,065.31 × 744.75
  4. Step 4: Simplify right side
    2,043.45x = 2,282,889.62
  5. Step 5: Solve for x
    x = 2,282,889.62/2,043.45
  6. Step 6: Final answer
    x = 1,117.17

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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.