Home / 3,449.50-5,172.46-1,693.72

Finding the Fourth Proportional to 3,449.50, 5,172.46 and 1,693.72

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Solution

The fourth proportional to 3,449.50, 5,172.46 and 1,693.72 is: 2,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.50 : 5,172.46 = 1,693.72 : x
  2. Step 2: Convert to fraction form
    3,449.50/5,172.46 = 1,693.72/x
  3. Step 3: Cross multiply
    3,449.50x = 5,172.46 × 1,693.72
  4. Step 4: Simplify right side
    3,449.50x = 8,760,698.95
  5. Step 5: Solve for x
    x = 8,760,698.95/3,449.50
  6. Step 6: Final answer
    x = 2,539.70

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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.