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Finding the Fourth Proportional to 1,032.84, 1,425.66 and 679.02

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Solution

The fourth proportional to 1,032.84, 1,425.66 and 679.02 is: 937.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.84 : 1,425.66 = 679.02 : x
  2. Step 2: Convert to fraction form
    1,032.84/1,425.66 = 679.02/x
  3. Step 3: Cross multiply
    1,032.84x = 1,425.66 × 679.02
  4. Step 4: Simplify right side
    1,032.84x = 968,051.65
  5. Step 5: Solve for x
    x = 968,051.65/1,032.84
  6. Step 6: Final answer
    x = 937.27

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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.