Home / 5,776.20-8,665.06-1,879.28

Finding the Fourth Proportional to 5,776.20, 8,665.06 and 1,879.28

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Solution

The fourth proportional to 5,776.20, 8,665.06 and 1,879.28 is: 2,819.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.20 : 8,665.06 = 1,879.28 : x
  2. Step 2: Convert to fraction form
    5,776.20/8,665.06 = 1,879.28/x
  3. Step 3: Cross multiply
    5,776.20x = 8,665.06 × 1,879.28
  4. Step 4: Simplify right side
    5,776.20x = 16,284,073.96
  5. Step 5: Solve for x
    x = 16,284,073.96/5,776.20
  6. Step 6: Final answer
    x = 2,819.17

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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.