Home / 5,518.10-7,615.77-3,393.97

Finding the Fourth Proportional to 5,518.10, 7,615.77 and 3,393.97

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Solution

The fourth proportional to 5,518.10, 7,615.77 and 3,393.97 is: 4,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.10 : 7,615.77 = 3,393.97 : x
  2. Step 2: Convert to fraction form
    5,518.10/7,615.77 = 3,393.97/x
  3. Step 3: Cross multiply
    5,518.10x = 7,615.77 × 3,393.97
  4. Step 4: Simplify right side
    5,518.10x = 25,847,694.91
  5. Step 5: Solve for x
    x = 25,847,694.91/5,518.10
  6. Step 6: Final answer
    x = 4,684.17

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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.