Home / 2,619.11-3,615.65-1,768.58

Finding the Fourth Proportional to 2,619.11, 3,615.65 and 1,768.58

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Solution

The fourth proportional to 2,619.11, 3,615.65 and 1,768.58 is: 2,441.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.11 : 3,615.65 = 1,768.58 : x
  2. Step 2: Convert to fraction form
    2,619.11/3,615.65 = 1,768.58/x
  3. Step 3: Cross multiply
    2,619.11x = 3,615.65 × 1,768.58
  4. Step 4: Simplify right side
    2,619.11x = 6,394,539.36
  5. Step 5: Solve for x
    x = 6,394,539.36/2,619.11
  6. Step 6: Final answer
    x = 2,441.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.