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Finding the Fourth Proportional to 800.02, 1,103.41 and 551.75

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Solution

The fourth proportional to 800.02, 1,103.41 and 551.75 is: 761.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    800.02 : 1,103.41 = 551.75 : x
  2. Step 2: Convert to fraction form
    800.02/1,103.41 = 551.75/x
  3. Step 3: Cross multiply
    800.02x = 1,103.41 × 551.75
  4. Step 4: Simplify right side
    800.02x = 608,809.40
  5. Step 5: Solve for x
    x = 608,809.40/800.02
  6. Step 6: Final answer
    x = 761.00

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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.