Home / 4,399.76-6,599.64-1,279.96

Finding the Fourth Proportional to 4,399.76, 6,599.64 and 1,279.96

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Solution

The fourth proportional to 4,399.76, 6,599.64 and 1,279.96 is: 1,919.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,399.76 : 6,599.64 = 1,279.96 : x
  2. Step 2: Convert to fraction form
    4,399.76/6,599.64 = 1,279.96/x
  3. Step 3: Cross multiply
    4,399.76x = 6,599.64 × 1,279.96
  4. Step 4: Simplify right side
    4,399.76x = 8,447,275.21
  5. Step 5: Solve for x
    x = 8,447,275.21/4,399.76
  6. Step 6: Final answer
    x = 1,919.94

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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.