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Finding the Fourth Proportional to 3,079.22, 4,619.07 and 887.99

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Solution

The fourth proportional to 3,079.22, 4,619.07 and 887.99 is: 1,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.22 : 4,619.07 = 887.99 : x
  2. Step 2: Convert to fraction form
    3,079.22/4,619.07 = 887.99/x
  3. Step 3: Cross multiply
    3,079.22x = 4,619.07 × 887.99
  4. Step 4: Simplify right side
    3,079.22x = 4,101,664.87
  5. Step 5: Solve for x
    x = 4,101,664.87/3,079.22
  6. Step 6: Final answer
    x = 1,332.05

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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.