Home / 1,261.08-1,733.28-1,112.82

Finding the Fourth Proportional to 1,261.08, 1,733.28 and 1,112.82

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Solution

The fourth proportional to 1,261.08, 1,733.28 and 1,112.82 is: 1,529.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.08 : 1,733.28 = 1,112.82 : x
  2. Step 2: Convert to fraction form
    1,261.08/1,733.28 = 1,112.82/x
  3. Step 3: Cross multiply
    1,261.08x = 1,733.28 × 1,112.82
  4. Step 4: Simplify right side
    1,261.08x = 1,928,828.65
  5. Step 5: Solve for x
    x = 1,928,828.65/1,261.08
  6. Step 6: Final answer
    x = 1,529.51

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.