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Finding the Fourth Proportional to 883.35, 1,325.43 and 868.77

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Solution

The fourth proportional to 883.35, 1,325.43 and 868.77 is: 1,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.35 : 1,325.43 = 868.77 : x
  2. Step 2: Convert to fraction form
    883.35/1,325.43 = 868.77/x
  3. Step 3: Cross multiply
    883.35x = 1,325.43 × 868.77
  4. Step 4: Simplify right side
    883.35x = 1,151,493.82
  5. Step 5: Solve for x
    x = 1,151,493.82/883.35
  6. Step 6: Final answer
    x = 1,303.55

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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.