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Finding the Fourth Proportional to 2,836.18, 4,253.92 and 756.30

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Solution

The fourth proportional to 2,836.18, 4,253.92 and 756.30 is: 1,134.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.18 : 4,253.92 = 756.30 : x
  2. Step 2: Convert to fraction form
    2,836.18/4,253.92 = 756.30/x
  3. Step 3: Cross multiply
    2,836.18x = 4,253.92 × 756.30
  4. Step 4: Simplify right side
    2,836.18x = 3,217,253.76
  5. Step 5: Solve for x
    x = 3,217,253.76/2,836.18
  6. Step 6: Final answer
    x = 1,134.36

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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.