Home / 2,815.88-4,220.98-1,173.33

Finding the Fourth Proportional to 2,815.88, 4,220.98 and 1,173.33

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Solution

The fourth proportional to 2,815.88, 4,220.98 and 1,173.33 is: 1,758.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.88 : 4,220.98 = 1,173.33 : x
  2. Step 2: Convert to fraction form
    2,815.88/4,220.98 = 1,173.33/x
  3. Step 3: Cross multiply
    2,815.88x = 4,220.98 × 1,173.33
  4. Step 4: Simplify right side
    2,815.88x = 4,952,599.53
  5. Step 5: Solve for x
    x = 4,952,599.53/2,815.88
  6. Step 6: Final answer
    x = 1,758.81

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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.