Home / 5,290.40-7,936.68-3,099.44

Finding the Fourth Proportional to 5,290.40, 7,936.68 and 3,099.44

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Solution

The fourth proportional to 5,290.40, 7,936.68 and 3,099.44 is: 4,649.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.40 : 7,936.68 = 3,099.44 : x
  2. Step 2: Convert to fraction form
    5,290.40/7,936.68 = 3,099.44/x
  3. Step 3: Cross multiply
    5,290.40x = 7,936.68 × 3,099.44
  4. Step 4: Simplify right side
    5,290.40x = 24,599,263.46
  5. Step 5: Solve for x
    x = 24,599,263.46/5,290.40
  6. Step 6: Final answer
    x = 4,649.79

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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.