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Finding the Fourth Proportional to 3,607.03, 5,410.55 and 871.03

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Solution

The fourth proportional to 3,607.03, 5,410.55 and 871.03 is: 1,306.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.03 : 5,410.55 = 871.03 : x
  2. Step 2: Convert to fraction form
    3,607.03/5,410.55 = 871.03/x
  3. Step 3: Cross multiply
    3,607.03x = 5,410.55 × 871.03
  4. Step 4: Simplify right side
    3,607.03x = 4,712,747.01
  5. Step 5: Solve for x
    x = 4,712,747.01/3,607.03
  6. Step 6: Final answer
    x = 1,306.55

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1.5x scale

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.