Home / 5,088.60-7,633.44-3,990.96

Finding the Fourth Proportional to 5,088.60, 7,633.44 and 3,990.96

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Solution

The fourth proportional to 5,088.60, 7,633.44 and 3,990.96 is: 5,986.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,088.60 : 7,633.44 = 3,990.96 : x
  2. Step 2: Convert to fraction form
    5,088.60/7,633.44 = 3,990.96/x
  3. Step 3: Cross multiply
    5,088.60x = 7,633.44 × 3,990.96
  4. Step 4: Simplify right side
    5,088.60x = 30,464,753.70
  5. Step 5: Solve for x
    x = 30,464,753.70/5,088.60
  6. Step 6: Final answer
    x = 5,986.86

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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.