Home / 1,097.32-1,514.26-631.72

Finding the Fourth Proportional to 1,097.32, 1,514.26 and 631.72

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Solution

The fourth proportional to 1,097.32, 1,514.26 and 631.72 is: 871.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.32 : 1,514.26 = 631.72 : x
  2. Step 2: Convert to fraction form
    1,097.32/1,514.26 = 631.72/x
  3. Step 3: Cross multiply
    1,097.32x = 1,514.26 × 631.72
  4. Step 4: Simplify right side
    1,097.32x = 956,588.33
  5. Step 5: Solve for x
    x = 956,588.33/1,097.32
  6. Step 6: Final answer
    x = 871.75

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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.