Home / 4,151.94-6,228.18-1,378.80

Finding the Fourth Proportional to 4,151.94, 6,228.18 and 1,378.80

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Solution

The fourth proportional to 4,151.94, 6,228.18 and 1,378.80 is: 2,068.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,151.94 : 6,228.18 = 1,378.80 : x
  2. Step 2: Convert to fraction form
    4,151.94/6,228.18 = 1,378.80/x
  3. Step 3: Cross multiply
    4,151.94x = 6,228.18 × 1,378.80
  4. Step 4: Simplify right side
    4,151.94x = 8,587,414.58
  5. Step 5: Solve for x
    x = 8,587,414.58/4,151.94
  6. Step 6: Final answer
    x = 2,068.29

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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.