Home / 5,339.39-8,005.77-2,221.58

Finding the Fourth Proportional to 5,339.39, 8,005.77 and 2,221.58

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Solution

The fourth proportional to 5,339.39, 8,005.77 and 2,221.58 is: 3,330.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.39 : 8,005.77 = 2,221.58 : x
  2. Step 2: Convert to fraction form
    5,339.39/8,005.77 = 2,221.58/x
  3. Step 3: Cross multiply
    5,339.39x = 8,005.77 × 2,221.58
  4. Step 4: Simplify right side
    5,339.39x = 17,785,458.52
  5. Step 5: Solve for x
    x = 17,785,458.52/5,339.39
  6. Step 6: Final answer
    x = 3,330.99

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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.