Home / 1,632.20-2,251.16-968.81

Finding the Fourth Proportional to 1,632.20, 2,251.16 and 968.81

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Solution

The fourth proportional to 1,632.20, 2,251.16 and 968.81 is: 1,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.20 : 2,251.16 = 968.81 : x
  2. Step 2: Convert to fraction form
    1,632.20/2,251.16 = 968.81/x
  3. Step 3: Cross multiply
    1,632.20x = 2,251.16 × 968.81
  4. Step 4: Simplify right side
    1,632.20x = 2,180,937.49
  5. Step 5: Solve for x
    x = 2,180,937.49/1,632.20
  6. Step 6: Final answer
    x = 1,336.20

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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.