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Finding the Fourth Proportional to 2,323.25, 3,485.20 and 679.92

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Solution

The fourth proportional to 2,323.25, 3,485.20 and 679.92 is: 1,019.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,323.25 : 3,485.20 = 679.92 : x
  2. Step 2: Convert to fraction form
    2,323.25/3,485.20 = 679.92/x
  3. Step 3: Cross multiply
    2,323.25x = 3,485.20 × 679.92
  4. Step 4: Simplify right side
    2,323.25x = 2,369,639.76
  5. Step 5: Solve for x
    x = 2,369,639.76/2,323.25
  6. Step 6: Final answer
    x = 1,019.97

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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.