Home / 4,914.04-7,371.18-2,138.80

Finding the Fourth Proportional to 4,914.04, 7,371.18 and 2,138.80

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Solution

The fourth proportional to 4,914.04, 7,371.18 and 2,138.80 is: 3,208.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.04 : 7,371.18 = 2,138.80 : x
  2. Step 2: Convert to fraction form
    4,914.04/7,371.18 = 2,138.80/x
  3. Step 3: Cross multiply
    4,914.04x = 7,371.18 × 2,138.80
  4. Step 4: Simplify right side
    4,914.04x = 15,765,479.78
  5. Step 5: Solve for x
    x = 15,765,479.78/4,914.04
  6. Step 6: Final answer
    x = 3,208.25

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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.