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Finding the Fourth Proportional to 886.90, 1,323.07 and 886.90

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Solution

The fourth proportional to 886.90, 1,323.07 and 886.90 is: 1,323.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    886.90 : 1,323.07 = 886.90 : x
  2. Step 2: Convert to fraction form
    886.90/1,323.07 = 886.90/x
  3. Step 3: Cross multiply
    886.90x = 1,323.07 × 886.90
  4. Step 4: Simplify right side
    886.90x = 1,173,426.35
  5. Step 5: Solve for x
    x = 1,173,426.35/886.90
  6. Step 6: Final answer
    x = 1,323.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.