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Finding the Fourth Proportional to 881.19, 1,322.19 and 696.51

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Solution

The fourth proportional to 881.19, 1,322.19 and 696.51 is: 1,045.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    881.19 : 1,322.19 = 696.51 : x
  2. Step 2: Convert to fraction form
    881.19/1,322.19 = 696.51/x
  3. Step 3: Cross multiply
    881.19x = 1,322.19 × 696.51
  4. Step 4: Simplify right side
    881.19x = 920,918.56
  5. Step 5: Solve for x
    x = 920,918.56/881.19
  6. Step 6: Final answer
    x = 1,045.09

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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.