Home / 7,405.40-11,105.70-2,473.76

Finding the Fourth Proportional to 7,405.40, 11,105.70 and 2,473.76

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Solution

The fourth proportional to 7,405.40, 11,105.70 and 2,473.76 is: 3,709.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.40 : 11,105.70 = 2,473.76 : x
  2. Step 2: Convert to fraction form
    7,405.40/11,105.70 = 2,473.76/x
  3. Step 3: Cross multiply
    7,405.40x = 11,105.70 × 2,473.76
  4. Step 4: Simplify right side
    7,405.40x = 27,472,836.43
  5. Step 5: Solve for x
    x = 27,472,836.43/7,405.40
  6. Step 6: Final answer
    x = 3,709.84

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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.