Home / 5,180.50-7,149.77-3,084.63

Finding the Fourth Proportional to 5,180.50, 7,149.77 and 3,084.63

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Solution

The fourth proportional to 5,180.50, 7,149.77 and 3,084.63 is: 4,257.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.50 : 7,149.77 = 3,084.63 : x
  2. Step 2: Convert to fraction form
    5,180.50/7,149.77 = 3,084.63/x
  3. Step 3: Cross multiply
    5,180.50x = 7,149.77 × 3,084.63
  4. Step 4: Simplify right side
    5,180.50x = 22,054,395.04
  5. Step 5: Solve for x
    x = 22,054,395.04/5,180.50
  6. Step 6: Final answer
    x = 4,257.19

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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.