Home / 1,550.12-2,133.72-1,298.66

Finding the Fourth Proportional to 1,550.12, 2,133.72 and 1,298.66

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Solution

The fourth proportional to 1,550.12, 2,133.72 and 1,298.66 is: 1,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.12 : 2,133.72 = 1,298.66 : x
  2. Step 2: Convert to fraction form
    1,550.12/2,133.72 = 1,298.66/x
  3. Step 3: Cross multiply
    1,550.12x = 2,133.72 × 1,298.66
  4. Step 4: Simplify right side
    1,550.12x = 2,770,976.82
  5. Step 5: Solve for x
    x = 2,770,976.82/1,550.12
  6. Step 6: Final answer
    x = 1,787.59

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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.