Home / 4,914.50-7,367.60-2,139.06

Finding the Fourth Proportional to 4,914.50, 7,367.60 and 2,139.06

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Solution

The fourth proportional to 4,914.50, 7,367.60 and 2,139.06 is: 3,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.50 : 7,367.60 = 2,139.06 : x
  2. Step 2: Convert to fraction form
    4,914.50/7,367.60 = 2,139.06/x
  3. Step 3: Cross multiply
    4,914.50x = 7,367.60 × 2,139.06
  4. Step 4: Simplify right side
    4,914.50x = 15,759,738.46
  5. Step 5: Solve for x
    x = 15,759,738.46/4,914.50
  6. Step 6: Final answer
    x = 3,206.78

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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.