Home / 3,217.47-4,440.11-1,820.22

Finding the Fourth Proportional to 3,217.47, 4,440.11 and 1,820.22

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Solution

The fourth proportional to 3,217.47, 4,440.11 and 1,820.22 is: 2,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.47 : 4,440.11 = 1,820.22 : x
  2. Step 2: Convert to fraction form
    3,217.47/4,440.11 = 1,820.22/x
  3. Step 3: Cross multiply
    3,217.47x = 4,440.11 × 1,820.22
  4. Step 4: Simplify right side
    3,217.47x = 8,081,967.92
  5. Step 5: Solve for x
    x = 8,081,967.92/3,217.47
  6. Step 6: Final answer
    x = 2,511.90

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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.