Home / 5,508.30-7,601.39-2,990.40

Finding the Fourth Proportional to 5,508.30, 7,601.39 and 2,990.40

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Solution

The fourth proportional to 5,508.30, 7,601.39 and 2,990.40 is: 4,126.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,508.30 : 7,601.39 = 2,990.40 : x
  2. Step 2: Convert to fraction form
    5,508.30/7,601.39 = 2,990.40/x
  3. Step 3: Cross multiply
    5,508.30x = 7,601.39 × 2,990.40
  4. Step 4: Simplify right side
    5,508.30x = 22,731,181.70
  5. Step 5: Solve for x
    x = 22,731,181.70/5,508.30
  6. Step 6: Final answer
    x = 4,126.71

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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.