Home / 4,288.60-6,433.28-1,327.72

Finding the Fourth Proportional to 4,288.60, 6,433.28 and 1,327.72

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Solution

The fourth proportional to 4,288.60, 6,433.28 and 1,327.72 is: 1,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.60 : 6,433.28 = 1,327.72 : x
  2. Step 2: Convert to fraction form
    4,288.60/6,433.28 = 1,327.72/x
  3. Step 3: Cross multiply
    4,288.60x = 6,433.28 × 1,327.72
  4. Step 4: Simplify right side
    4,288.60x = 8,541,594.52
  5. Step 5: Solve for x
    x = 8,541,594.52/4,288.60
  6. Step 6: Final answer
    x = 1,991.70

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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.