Home / 1,811.66-2,714.43-1,151.91

Finding the Fourth Proportional to 1,811.66, 2,714.43 and 1,151.91

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Solution

The fourth proportional to 1,811.66, 2,714.43 and 1,151.91 is: 1,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.66 : 2,714.43 = 1,151.91 : x
  2. Step 2: Convert to fraction form
    1,811.66/2,714.43 = 1,151.91/x
  3. Step 3: Cross multiply
    1,811.66x = 2,714.43 × 1,151.91
  4. Step 4: Simplify right side
    1,811.66x = 3,126,779.06
  5. Step 5: Solve for x
    x = 3,126,779.06/1,811.66
  6. Step 6: Final answer
    x = 1,725.92

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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.