Home / 4,179.20-6,268.80-4,150.40

Finding the Fourth Proportional to 4,179.20, 6,268.80 and 4,150.40

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Solution

The fourth proportional to 4,179.20, 6,268.80 and 4,150.40 is: 6,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179.20 : 6,268.80 = 4,150.40 : x
  2. Step 2: Convert to fraction form
    4,179.20/6,268.80 = 4,150.40/x
  3. Step 3: Cross multiply
    4,179.20x = 6,268.80 × 4,150.40
  4. Step 4: Simplify right side
    4,179.20x = 26,018,027.52
  5. Step 5: Solve for x
    x = 26,018,027.52/4,179.20
  6. Step 6: Final answer
    x = 6,225.60

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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.