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Finding the Fourth Proportional to 5,246.15, 7,868.97 and 1,958.99

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Solution

The fourth proportional to 5,246.15, 7,868.97 and 1,958.99 is: 2,938.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.15 : 7,868.97 = 1,958.99 : x
  2. Step 2: Convert to fraction form
    5,246.15/7,868.97 = 1,958.99/x
  3. Step 3: Cross multiply
    5,246.15x = 7,868.97 × 1,958.99
  4. Step 4: Simplify right side
    5,246.15x = 15,415,194.20
  5. Step 5: Solve for x
    x = 15,415,194.20/5,246.15
  6. Step 6: Final answer
    x = 2,938.39

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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.