Home / 7,426.49-11,140.11-1,879.88

Finding the Fourth Proportional to 7,426.49, 11,140.11 and 1,879.88

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Solution

The fourth proportional to 7,426.49, 11,140.11 and 1,879.88 is: 2,819.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,426.49 : 11,140.11 = 1,879.88 : x
  2. Step 2: Convert to fraction form
    7,426.49/11,140.11 = 1,879.88/x
  3. Step 3: Cross multiply
    7,426.49x = 11,140.11 × 1,879.88
  4. Step 4: Simplify right side
    7,426.49x = 20,942,014.29
  5. Step 5: Solve for x
    x = 20,942,014.29/7,426.49
  6. Step 6: Final answer
    x = 2,819.91

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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.