Home / 5,110.83-7,664.29-1,990.44

Finding the Fourth Proportional to 5,110.83, 7,664.29 and 1,990.44

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Solution

The fourth proportional to 5,110.83, 7,664.29 and 1,990.44 is: 2,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.83 : 7,664.29 = 1,990.44 : x
  2. Step 2: Convert to fraction form
    5,110.83/7,664.29 = 1,990.44/x
  3. Step 3: Cross multiply
    5,110.83x = 7,664.29 × 1,990.44
  4. Step 4: Simplify right side
    5,110.83x = 15,255,304.41
  5. Step 5: Solve for x
    x = 15,255,304.41/5,110.83
  6. Step 6: Final answer
    x = 2,984.90

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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.