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Finding the Fourth Proportional to 2,007.90, 2,770.79 and 1,344.65

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Solution

The fourth proportional to 2,007.90, 2,770.79 and 1,344.65 is: 1,855.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.90 : 2,770.79 = 1,344.65 : x
  2. Step 2: Convert to fraction form
    2,007.90/2,770.79 = 1,344.65/x
  3. Step 3: Cross multiply
    2,007.90x = 2,770.79 × 1,344.65
  4. Step 4: Simplify right side
    2,007.90x = 3,725,722.20
  5. Step 5: Solve for x
    x = 3,725,722.20/2,007.90
  6. Step 6: Final answer
    x = 1,855.53

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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.