Home / 1,631.35-2,251.46-968.23

Finding the Fourth Proportional to 1,631.35, 2,251.46 and 968.23

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Solution

The fourth proportional to 1,631.35, 2,251.46 and 968.23 is: 1,336.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.35 : 2,251.46 = 968.23 : x
  2. Step 2: Convert to fraction form
    1,631.35/2,251.46 = 968.23/x
  3. Step 3: Cross multiply
    1,631.35x = 2,251.46 × 968.23
  4. Step 4: Simplify right side
    1,631.35x = 2,179,931.12
  5. Step 5: Solve for x
    x = 2,179,931.12/1,631.35
  6. Step 6: Final answer
    x = 1,336.27

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Half scale
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Double scale
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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.