Home / 3,053.27-4,579.34-861.99

Finding the Fourth Proportional to 3,053.27, 4,579.34 and 861.99

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Solution

The fourth proportional to 3,053.27, 4,579.34 and 861.99 is: 1,292.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,053.27 : 4,579.34 = 861.99 : x
  2. Step 2: Convert to fraction form
    3,053.27/4,579.34 = 861.99/x
  3. Step 3: Cross multiply
    3,053.27x = 4,579.34 × 861.99
  4. Step 4: Simplify right side
    3,053.27x = 3,947,323.80
  5. Step 5: Solve for x
    x = 3,947,323.80/3,053.27
  6. Step 6: Final answer
    x = 1,292.82

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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.