Home / 4,218.17-5,818.80-3,221.66

Finding the Fourth Proportional to 4,218.17, 5,818.80 and 3,221.66

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Solution

The fourth proportional to 4,218.17, 5,818.80 and 3,221.66 is: 4,444.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.17 : 5,818.80 = 3,221.66 : x
  2. Step 2: Convert to fraction form
    4,218.17/5,818.80 = 3,221.66/x
  3. Step 3: Cross multiply
    4,218.17x = 5,818.80 × 3,221.66
  4. Step 4: Simplify right side
    4,218.17x = 18,746,221.84
  5. Step 5: Solve for x
    x = 18,746,221.84/4,218.17
  6. Step 6: Final answer
    x = 4,444.17

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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.