Home / 2,188.25-3,277.15-1,211.93

Finding the Fourth Proportional to 2,188.25, 3,277.15 and 1,211.93

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Solution

The fourth proportional to 2,188.25, 3,277.15 and 1,211.93 is: 1,815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.25 : 3,277.15 = 1,211.93 : x
  2. Step 2: Convert to fraction form
    2,188.25/3,277.15 = 1,211.93/x
  3. Step 3: Cross multiply
    2,188.25x = 3,277.15 × 1,211.93
  4. Step 4: Simplify right side
    2,188.25x = 3,971,656.98
  5. Step 5: Solve for x
    x = 3,971,656.98/2,188.25
  6. Step 6: Final answer
    x = 1,815.00

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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.