Home / 5,339.47-8,005.75-2,221.62

Finding the Fourth Proportional to 5,339.47, 8,005.75 and 2,221.62

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Solution

The fourth proportional to 5,339.47, 8,005.75 and 2,221.62 is: 3,330.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.47 : 8,005.75 = 2,221.62 : x
  2. Step 2: Convert to fraction form
    5,339.47/8,005.75 = 2,221.62/x
  3. Step 3: Cross multiply
    5,339.47x = 8,005.75 × 2,221.62
  4. Step 4: Simplify right side
    5,339.47x = 17,785,734.32
  5. Step 5: Solve for x
    x = 17,785,734.32/5,339.47
  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.