Home / 5,428.70-8,126.85-3,236.30

Finding the Fourth Proportional to 5,428.70, 8,126.85 and 3,236.30

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Solution

The fourth proportional to 5,428.70, 8,126.85 and 3,236.30 is: 4,844.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.70 : 8,126.85 = 3,236.30 : x
  2. Step 2: Convert to fraction form
    5,428.70/8,126.85 = 3,236.30/x
  3. Step 3: Cross multiply
    5,428.70x = 8,126.85 × 3,236.30
  4. Step 4: Simplify right side
    5,428.70x = 26,300,924.66
  5. Step 5: Solve for x
    x = 26,300,924.66/5,428.70
  6. Step 6: Final answer
    x = 4,844.79

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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.