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Finding the Fourth Proportional to 1,632.92, 2,253.20 and 969.60

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Solution

The fourth proportional to 1,632.92, 2,253.20 and 969.60 is: 1,337.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.92 : 2,253.20 = 969.60 : x
  2. Step 2: Convert to fraction form
    1,632.92/2,253.20 = 969.60/x
  3. Step 3: Cross multiply
    1,632.92x = 2,253.20 × 969.60
  4. Step 4: Simplify right side
    1,632.92x = 2,184,702.72
  5. Step 5: Solve for x
    x = 2,184,702.72/1,632.92
  6. Step 6: Final answer
    x = 1,337.91

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1.5x scale

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.