Home / 3,378.87-5,068.58-1,188.09

Finding the Fourth Proportional to 3,378.87, 5,068.58 and 1,188.09

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Solution

The fourth proportional to 3,378.87, 5,068.58 and 1,188.09 is: 1,782.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.87 : 5,068.58 = 1,188.09 : x
  2. Step 2: Convert to fraction form
    3,378.87/5,068.58 = 1,188.09/x
  3. Step 3: Cross multiply
    3,378.87x = 5,068.58 × 1,188.09
  4. Step 4: Simplify right side
    3,378.87x = 6,021,923.27
  5. Step 5: Solve for x
    x = 6,021,923.27/3,378.87
  6. Step 6: Final answer
    x = 1,782.23

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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.