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Finding the Fourth Proportional to 2,960.49, 4,440.24 and 880.47

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Solution

The fourth proportional to 2,960.49, 4,440.24 and 880.47 is: 1,320.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.49 : 4,440.24 = 880.47 : x
  2. Step 2: Convert to fraction form
    2,960.49/4,440.24 = 880.47/x
  3. Step 3: Cross multiply
    2,960.49x = 4,440.24 × 880.47
  4. Step 4: Simplify right side
    2,960.49x = 3,909,498.11
  5. Step 5: Solve for x
    x = 3,909,498.11/2,960.49
  6. Step 6: Final answer
    x = 1,320.56

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Double scale
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Similar ratio
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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.