Home / 4,220.68-6,332.30-2,990.47

Finding the Fourth Proportional to 4,220.68, 6,332.30 and 2,990.47

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Solution

The fourth proportional to 4,220.68, 6,332.30 and 2,990.47 is: 4,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.68 : 6,332.30 = 2,990.47 : x
  2. Step 2: Convert to fraction form
    4,220.68/6,332.30 = 2,990.47/x
  3. Step 3: Cross multiply
    4,220.68x = 6,332.30 × 2,990.47
  4. Step 4: Simplify right side
    4,220.68x = 18,936,553.18
  5. Step 5: Solve for x
    x = 18,936,553.18/4,220.68
  6. Step 6: Final answer
    x = 4,486.61

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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.