Home / 5,348.21-7,378.44-3,109.70

Finding the Fourth Proportional to 5,348.21, 7,378.44 and 3,109.70

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Solution

The fourth proportional to 5,348.21, 7,378.44 and 3,109.70 is: 4,290.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.21 : 7,378.44 = 3,109.70 : x
  2. Step 2: Convert to fraction form
    5,348.21/7,378.44 = 3,109.70/x
  3. Step 3: Cross multiply
    5,348.21x = 7,378.44 × 3,109.70
  4. Step 4: Simplify right side
    5,348.21x = 22,944,734.87
  5. Step 5: Solve for x
    x = 22,944,734.87/5,348.21
  6. Step 6: Final answer
    x = 4,290.17

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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.