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Finding the Fourth Proportional to 1,976.39, 2,964.13 and 880.16

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Solution

The fourth proportional to 1,976.39, 2,964.13 and 880.16 is: 1,320.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.39 : 2,964.13 = 880.16 : x
  2. Step 2: Convert to fraction form
    1,976.39/2,964.13 = 880.16/x
  3. Step 3: Cross multiply
    1,976.39x = 2,964.13 × 880.16
  4. Step 4: Simplify right side
    1,976.39x = 2,608,899.05
  5. Step 5: Solve for x
    x = 2,608,899.05/1,976.39
  6. Step 6: Final answer
    x = 1,320.03

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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.