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Finding the Fourth Proportional to 2,056.40, 3,083.88 and 960.56

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Solution

The fourth proportional to 2,056.40, 3,083.88 and 960.56 is: 1,440.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,056.40 : 3,083.88 = 960.56 : x
  2. Step 2: Convert to fraction form
    2,056.40/3,083.88 = 960.56/x
  3. Step 3: Cross multiply
    2,056.40x = 3,083.88 × 960.56
  4. Step 4: Simplify right side
    2,056.40x = 2,962,251.77
  5. Step 5: Solve for x
    x = 2,962,251.77/2,056.40
  6. Step 6: Final answer
    x = 1,440.50

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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.