Home / 1,907.38-2,859.45-1,816.66

Finding the Fourth Proportional to 1,907.38, 2,859.45 and 1,816.66

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Solution

The fourth proportional to 1,907.38, 2,859.45 and 1,816.66 is: 2,723.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.38 : 2,859.45 = 1,816.66 : x
  2. Step 2: Convert to fraction form
    1,907.38/2,859.45 = 1,816.66/x
  3. Step 3: Cross multiply
    1,907.38x = 2,859.45 × 1,816.66
  4. Step 4: Simplify right side
    1,907.38x = 5,194,648.44
  5. Step 5: Solve for x
    x = 5,194,648.44/1,907.38
  6. Step 6: Final answer
    x = 2,723.45

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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.