Home / 5,279.58-7,920.27-1,993.14

Finding the Fourth Proportional to 5,279.58, 7,920.27 and 1,993.14

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Solution

The fourth proportional to 5,279.58, 7,920.27 and 1,993.14 is: 2,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.58 : 7,920.27 = 1,993.14 : x
  2. Step 2: Convert to fraction form
    5,279.58/7,920.27 = 1,993.14/x
  3. Step 3: Cross multiply
    5,279.58x = 7,920.27 × 1,993.14
  4. Step 4: Simplify right side
    5,279.58x = 15,786,206.95
  5. Step 5: Solve for x
    x = 15,786,206.95/5,279.58
  6. Step 6: Final answer
    x = 2,990.05

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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.