Home / 1,403.91-2,101.14-1,196.96

Finding the Fourth Proportional to 1,403.91, 2,101.14 and 1,196.96

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Solution

The fourth proportional to 1,403.91, 2,101.14 and 1,196.96 is: 1,791.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.91 : 2,101.14 = 1,196.96 : x
  2. Step 2: Convert to fraction form
    1,403.91/2,101.14 = 1,196.96/x
  3. Step 3: Cross multiply
    1,403.91x = 2,101.14 × 1,196.96
  4. Step 4: Simplify right side
    1,403.91x = 2,514,970.03
  5. Step 5: Solve for x
    x = 2,514,970.03/1,403.91
  6. Step 6: Final answer
    x = 1,791.40

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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.