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Finding the Fourth Proportional to 3,356.92, 5,034.84 and 1,276.84

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Solution

The fourth proportional to 3,356.92, 5,034.84 and 1,276.84 is: 1,915.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,356.92 : 5,034.84 = 1,276.84 : x
  2. Step 2: Convert to fraction form
    3,356.92/5,034.84 = 1,276.84/x
  3. Step 3: Cross multiply
    3,356.92x = 5,034.84 × 1,276.84
  4. Step 4: Simplify right side
    3,356.92x = 6,428,685.11
  5. Step 5: Solve for x
    x = 6,428,685.11/3,356.92
  6. Step 6: Final answer
    x = 1,915.05

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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.