Home / 4,152.68-6,228.88-1,378.20

Finding the Fourth Proportional to 4,152.68, 6,228.88 and 1,378.20

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Solution

The fourth proportional to 4,152.68, 6,228.88 and 1,378.20 is: 2,067.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,152.68 : 6,228.88 = 1,378.20 : x
  2. Step 2: Convert to fraction form
    4,152.68/6,228.88 = 1,378.20/x
  3. Step 3: Cross multiply
    4,152.68x = 6,228.88 × 1,378.20
  4. Step 4: Simplify right side
    4,152.68x = 8,584,642.42
  5. Step 5: Solve for x
    x = 8,584,642.42/4,152.68
  6. Step 6: Final answer
    x = 2,067.25

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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.