Home / 2,615.45-3,914.00-1,788.17

Finding the Fourth Proportional to 2,615.45, 3,914.00 and 1,788.17

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Solution

The fourth proportional to 2,615.45, 3,914.00 and 1,788.17 is: 2,675.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.45 : 3,914.00 = 1,788.17 : x
  2. Step 2: Convert to fraction form
    2,615.45/3,914.00 = 1,788.17/x
  3. Step 3: Cross multiply
    2,615.45x = 3,914.00 × 1,788.17
  4. Step 4: Simplify right side
    2,615.45x = 6,998,888.44
  5. Step 5: Solve for x
    x = 6,998,888.44/2,615.45
  6. Step 6: Final answer
    x = 2,675.98

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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.