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Finding the Fourth Proportional to 890.06, 1,327.12 and 888.84

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Solution

The fourth proportional to 890.06, 1,327.12 and 888.84 is: 1,325.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    890.06 : 1,327.12 = 888.84 : x
  2. Step 2: Convert to fraction form
    890.06/1,327.12 = 888.84/x
  3. Step 3: Cross multiply
    890.06x = 1,327.12 × 888.84
  4. Step 4: Simplify right side
    890.06x = 1,179,595.12
  5. Step 5: Solve for x
    x = 1,179,595.12/890.06
  6. Step 6: Final answer
    x = 1,325.31

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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.