Home / 4,253.32-6,378.42-1,479.28

Finding the Fourth Proportional to 4,253.32, 6,378.42 and 1,479.28

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Solution

The fourth proportional to 4,253.32, 6,378.42 and 1,479.28 is: 2,218.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.32 : 6,378.42 = 1,479.28 : x
  2. Step 2: Convert to fraction form
    4,253.32/6,378.42 = 1,479.28/x
  3. Step 3: Cross multiply
    4,253.32x = 6,378.42 × 1,479.28
  4. Step 4: Simplify right side
    4,253.32x = 9,435,469.14
  5. Step 5: Solve for x
    x = 9,435,469.14/4,253.32
  6. Step 6: Final answer
    x = 2,218.38

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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.