Home / 5,083.12-7,619.44-2,887.20

Finding the Fourth Proportional to 5,083.12, 7,619.44 and 2,887.20

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Solution

The fourth proportional to 5,083.12, 7,619.44 and 2,887.20 is: 4,327.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,083.12 : 7,619.44 = 2,887.20 : x
  2. Step 2: Convert to fraction form
    5,083.12/7,619.44 = 2,887.20/x
  3. Step 3: Cross multiply
    5,083.12x = 7,619.44 × 2,887.20
  4. Step 4: Simplify right side
    5,083.12x = 21,998,847.17
  5. Step 5: Solve for x
    x = 21,998,847.17/5,083.12
  6. Step 6: Final answer
    x = 4,327.82

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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.