Home / 3,019.50-4,166.92-1,693.20

Finding the Fourth Proportional to 3,019.50, 4,166.92 and 1,693.20

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Solution

The fourth proportional to 3,019.50, 4,166.92 and 1,693.20 is: 2,336.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.50 : 4,166.92 = 1,693.20 : x
  2. Step 2: Convert to fraction form
    3,019.50/4,166.92 = 1,693.20/x
  3. Step 3: Cross multiply
    3,019.50x = 4,166.92 × 1,693.20
  4. Step 4: Simplify right side
    3,019.50x = 7,055,428.94
  5. Step 5: Solve for x
    x = 7,055,428.94/3,019.50
  6. Step 6: Final answer
    x = 2,336.62

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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.