Home / 7,942.40-10,961.16-4,406.68

Finding the Fourth Proportional to 7,942.40, 10,961.16 and 4,406.68

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Solution

The fourth proportional to 7,942.40, 10,961.16 and 4,406.68 is: 6,081.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.40 : 10,961.16 = 4,406.68 : x
  2. Step 2: Convert to fraction form
    7,942.40/10,961.16 = 4,406.68/x
  3. Step 3: Cross multiply
    7,942.40x = 10,961.16 × 4,406.68
  4. Step 4: Simplify right side
    7,942.40x = 48,302,324.55
  5. Step 5: Solve for x
    x = 48,302,324.55/7,942.40
  6. Step 6: Final answer
    x = 6,081.58

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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.