Home / 7,313.20-10,969.26-2,118.76

Finding the Fourth Proportional to 7,313.20, 10,969.26 and 2,118.76

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Solution

The fourth proportional to 7,313.20, 10,969.26 and 2,118.76 is: 3,177.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,313.20 : 10,969.26 = 2,118.76 : x
  2. Step 2: Convert to fraction form
    7,313.20/10,969.26 = 2,118.76/x
  3. Step 3: Cross multiply
    7,313.20x = 10,969.26 × 2,118.76
  4. Step 4: Simplify right side
    7,313.20x = 23,241,229.32
  5. Step 5: Solve for x
    x = 23,241,229.32/7,313.20
  6. Step 6: Final answer
    x = 3,177.98

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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.