Home / 7,073.28-10,609.20-1,879.68

Finding the Fourth Proportional to 7,073.28, 10,609.20 and 1,879.68

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Solution

The fourth proportional to 7,073.28, 10,609.20 and 1,879.68 is: 2,819.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.28 : 10,609.20 = 1,879.68 : x
  2. Step 2: Convert to fraction form
    7,073.28/10,609.20 = 1,879.68/x
  3. Step 3: Cross multiply
    7,073.28x = 10,609.20 × 1,879.68
  4. Step 4: Simplify right side
    7,073.28x = 19,941,901.06
  5. Step 5: Solve for x
    x = 19,941,901.06/7,073.28
  6. Step 6: Final answer
    x = 2,819.33

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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.