Home / 2,777.13-4,166.35-928.26

Finding the Fourth Proportional to 2,777.13, 4,166.35 and 928.26

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Solution

The fourth proportional to 2,777.13, 4,166.35 and 928.26 is: 1,392.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.13 : 4,166.35 = 928.26 : x
  2. Step 2: Convert to fraction form
    2,777.13/4,166.35 = 928.26/x
  3. Step 3: Cross multiply
    2,777.13x = 4,166.35 × 928.26
  4. Step 4: Simplify right side
    2,777.13x = 3,867,453.73
  5. Step 5: Solve for x
    x = 3,867,453.73/2,777.13
  6. Step 6: Final answer
    x = 1,392.61

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1.5x scale

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.