Home / 3,106.53-4,287.15-1,927.56

Finding the Fourth Proportional to 3,106.53, 4,287.15 and 1,927.56

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Solution

The fourth proportional to 3,106.53, 4,287.15 and 1,927.56 is: 2,660.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.53 : 4,287.15 = 1,927.56 : x
  2. Step 2: Convert to fraction form
    3,106.53/4,287.15 = 1,927.56/x
  3. Step 3: Cross multiply
    3,106.53x = 4,287.15 × 1,927.56
  4. Step 4: Simplify right side
    3,106.53x = 8,263,738.85
  5. Step 5: Solve for x
    x = 8,263,738.85/3,106.53
  6. Step 6: Final answer
    x = 2,660.12

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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.