Home / 4,149.20-6,220.70-2,505.40

Finding the Fourth Proportional to 4,149.20, 6,220.70 and 2,505.40

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Solution

The fourth proportional to 4,149.20, 6,220.70 and 2,505.40 is: 3,756.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,149.20 : 6,220.70 = 2,505.40 : x
  2. Step 2: Convert to fraction form
    4,149.20/6,220.70 = 2,505.40/x
  3. Step 3: Cross multiply
    4,149.20x = 6,220.70 × 2,505.40
  4. Step 4: Simplify right side
    4,149.20x = 15,585,341.78
  5. Step 5: Solve for x
    x = 15,585,341.78/4,149.20
  6. Step 6: Final answer
    x = 3,756.23

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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.