Home / 2,188.88-3,281.58-1,263.39

Finding the Fourth Proportional to 2,188.88, 3,281.58 and 1,263.39

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Solution

The fourth proportional to 2,188.88, 3,281.58 and 1,263.39 is: 1,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.88 : 3,281.58 = 1,263.39 : x
  2. Step 2: Convert to fraction form
    2,188.88/3,281.58 = 1,263.39/x
  3. Step 3: Cross multiply
    2,188.88x = 3,281.58 × 1,263.39
  4. Step 4: Simplify right side
    2,188.88x = 4,145,921.87
  5. Step 5: Solve for x
    x = 4,145,921.87/2,188.88
  6. Step 6: Final answer
    x = 1,894.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.