Home / 7,945.40-10,964.61-4,408.60

Finding the Fourth Proportional to 7,945.40, 10,964.61 and 4,408.60

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Solution

The fourth proportional to 7,945.40, 10,964.61 and 4,408.60 is: 6,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.40 : 10,964.61 = 4,408.60 : x
  2. Step 2: Convert to fraction form
    7,945.40/10,964.61 = 4,408.60/x
  3. Step 3: Cross multiply
    7,945.40x = 10,964.61 × 4,408.60
  4. Step 4: Simplify right side
    7,945.40x = 48,338,552.23
  5. Step 5: Solve for x
    x = 48,338,552.23/7,945.40
  6. Step 6: Final answer
    x = 6,083.85

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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.