Home / 4,400.78-6,599.64-1,279.94

Finding the Fourth Proportional to 4,400.78, 6,599.64 and 1,279.94

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Solution

The fourth proportional to 4,400.78, 6,599.64 and 1,279.94 is: 1,919.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,400.78 : 6,599.64 = 1,279.94 : x
  2. Step 2: Convert to fraction form
    4,400.78/6,599.64 = 1,279.94/x
  3. Step 3: Cross multiply
    4,400.78x = 6,599.64 × 1,279.94
  4. Step 4: Simplify right side
    4,400.78x = 8,447,143.22
  5. Step 5: Solve for x
    x = 8,447,143.22/4,400.78
  6. Step 6: Final answer
    x = 1,919.47

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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.