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Finding the Fourth Proportional to 2,809.41, 4,214.12 and 960.54

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Solution

The fourth proportional to 2,809.41, 4,214.12 and 960.54 is: 1,440.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.41 : 4,214.12 = 960.54 : x
  2. Step 2: Convert to fraction form
    2,809.41/4,214.12 = 960.54/x
  3. Step 3: Cross multiply
    2,809.41x = 4,214.12 × 960.54
  4. Step 4: Simplify right side
    2,809.41x = 4,047,826.02
  5. Step 5: Solve for x
    x = 4,047,826.02/2,809.41
  6. Step 6: Final answer
    x = 1,440.81

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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.