Home / 4,478.09-6,179.77-2,488.60

Finding the Fourth Proportional to 4,478.09, 6,179.77 and 2,488.60

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Solution

The fourth proportional to 4,478.09, 6,179.77 and 2,488.60 is: 3,434.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.09 : 6,179.77 = 2,488.60 : x
  2. Step 2: Convert to fraction form
    4,478.09/6,179.77 = 2,488.60/x
  3. Step 3: Cross multiply
    4,478.09x = 6,179.77 × 2,488.60
  4. Step 4: Simplify right side
    4,478.09x = 15,378,975.62
  5. Step 5: Solve for x
    x = 15,378,975.62/4,478.09
  6. Step 6: Final answer
    x = 3,434.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.