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Finding the Fourth Proportional to 1,798.65, 2,475.90 and 1,550.79

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Solution

The fourth proportional to 1,798.65, 2,475.90 and 1,550.79 is: 2,134.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.65 : 2,475.90 = 1,550.79 : x
  2. Step 2: Convert to fraction form
    1,798.65/2,475.90 = 1,550.79/x
  3. Step 3: Cross multiply
    1,798.65x = 2,475.90 × 1,550.79
  4. Step 4: Simplify right side
    1,798.65x = 3,839,600.96
  5. Step 5: Solve for x
    x = 3,839,600.96/1,798.65
  6. Step 6: Final answer
    x = 2,134.71

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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.