Home / 3,188.97-4,782.75-1,214.19

Finding the Fourth Proportional to 3,188.97, 4,782.75 and 1,214.19

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Solution

The fourth proportional to 3,188.97, 4,782.75 and 1,214.19 is: 1,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.97 : 4,782.75 = 1,214.19 : x
  2. Step 2: Convert to fraction form
    3,188.97/4,782.75 = 1,214.19/x
  3. Step 3: Cross multiply
    3,188.97x = 4,782.75 × 1,214.19
  4. Step 4: Simplify right side
    3,188.97x = 5,807,162.67
  5. Step 5: Solve for x
    x = 5,807,162.67/3,188.97
  6. Step 6: Final answer
    x = 1,821.02

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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.