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Finding the Fourth Proportional to 6,958.29, 9,603.11 and 3,974.57

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Solution

The fourth proportional to 6,958.29, 9,603.11 and 3,974.57 is: 5,485.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,958.29 : 9,603.11 = 3,974.57 : x
  2. Step 2: Convert to fraction form
    6,958.29/9,603.11 = 3,974.57/x
  3. Step 3: Cross multiply
    6,958.29x = 9,603.11 × 3,974.57
  4. Step 4: Simplify right side
    6,958.29x = 38,168,165.02
  5. Step 5: Solve for x
    x = 38,168,165.02/6,958.29
  6. Step 6: Final answer
    x = 5,485.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.