Home / 5,078.32-7,612.91-1,790.83

Finding the Fourth Proportional to 5,078.32, 7,612.91 and 1,790.83

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Solution

The fourth proportional to 5,078.32, 7,612.91 and 1,790.83 is: 2,684.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.32 : 7,612.91 = 1,790.83 : x
  2. Step 2: Convert to fraction form
    5,078.32/7,612.91 = 1,790.83/x
  3. Step 3: Cross multiply
    5,078.32x = 7,612.91 × 1,790.83
  4. Step 4: Simplify right side
    5,078.32x = 13,633,418.66
  5. Step 5: Solve for x
    x = 13,633,418.66/5,078.32
  6. Step 6: Final answer
    x = 2,684.63

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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.