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Finding the Fourth Proportional to 2,007.87, 2,770.63 and 1,123.65

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Solution

The fourth proportional to 2,007.87, 2,770.63 and 1,123.65 is: 1,550.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.87 : 2,770.63 = 1,123.65 : x
  2. Step 2: Convert to fraction form
    2,007.87/2,770.63 = 1,123.65/x
  3. Step 3: Cross multiply
    2,007.87x = 2,770.63 × 1,123.65
  4. Step 4: Simplify right side
    2,007.87x = 3,113,218.40
  5. Step 5: Solve for x
    x = 3,113,218.40/2,007.87
  6. Step 6: Final answer
    x = 1,550.51

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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.