Home / 1,835.44-2,531.64-1,238.20

Finding the Fourth Proportional to 1,835.44, 2,531.64 and 1,238.20

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Solution

The fourth proportional to 1,835.44, 2,531.64 and 1,238.20 is: 1,707.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835.44 : 2,531.64 = 1,238.20 : x
  2. Step 2: Convert to fraction form
    1,835.44/2,531.64 = 1,238.20/x
  3. Step 3: Cross multiply
    1,835.44x = 2,531.64 × 1,238.20
  4. Step 4: Simplify right side
    1,835.44x = 3,134,676.65
  5. Step 5: Solve for x
    x = 3,134,676.65/1,835.44
  6. Step 6: Final answer
    x = 1,707.86

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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.