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Finding the Fourth Proportional to 2,718.52, 4,077.34 and 964.80

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Solution

The fourth proportional to 2,718.52, 4,077.34 and 964.80 is: 1,447.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.52 : 4,077.34 = 964.80 : x
  2. Step 2: Convert to fraction form
    2,718.52/4,077.34 = 964.80/x
  3. Step 3: Cross multiply
    2,718.52x = 4,077.34 × 964.80
  4. Step 4: Simplify right side
    2,718.52x = 3,933,815.22
  5. Step 5: Solve for x
    x = 3,933,815.22/2,718.52
  6. Step 6: Final answer
    x = 1,447.04

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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.