Home / 3,221.04-4,416.09-3,162.72

Finding the Fourth Proportional to 3,221.04, 4,416.09 and 3,162.72

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Solution

The fourth proportional to 3,221.04, 4,416.09 and 3,162.72 is: 4,336.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.04 : 4,416.09 = 3,162.72 : x
  2. Step 2: Convert to fraction form
    3,221.04/4,416.09 = 3,162.72/x
  3. Step 3: Cross multiply
    3,221.04x = 4,416.09 × 3,162.72
  4. Step 4: Simplify right side
    3,221.04x = 13,966,856.16
  5. Step 5: Solve for x
    x = 13,966,856.16/3,221.04
  6. Step 6: Final answer
    x = 4,336.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.