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Finding the Fourth Proportional to 2,325.54, 3,489.30 and 864.93

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Solution

The fourth proportional to 2,325.54, 3,489.30 and 864.93 is: 1,297.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,325.54 : 3,489.30 = 864.93 : x
  2. Step 2: Convert to fraction form
    2,325.54/3,489.30 = 864.93/x
  3. Step 3: Cross multiply
    2,325.54x = 3,489.30 × 864.93
  4. Step 4: Simplify right side
    2,325.54x = 3,018,000.25
  5. Step 5: Solve for x
    x = 3,018,000.25/2,325.54
  6. Step 6: Final answer
    x = 1,297.76

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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.