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Finding the Fourth Proportional to 2,323.62, 3,485.64 and 862.32

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Solution

The fourth proportional to 2,323.62, 3,485.64 and 862.32 is: 1,293.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,323.62 : 3,485.64 = 862.32 : x
  2. Step 2: Convert to fraction form
    2,323.62/3,485.64 = 862.32/x
  3. Step 3: Cross multiply
    2,323.62x = 3,485.64 × 862.32
  4. Step 4: Simplify right side
    2,323.62x = 3,005,737.08
  5. Step 5: Solve for x
    x = 3,005,737.08/2,323.62
  6. Step 6: Final answer
    x = 1,293.56

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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.