Home / 3,190.35-4,398.99-2,922.45

Finding the Fourth Proportional to 3,190.35, 4,398.99 and 2,922.45

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Solution

The fourth proportional to 3,190.35, 4,398.99 and 2,922.45 is: 4,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.35 : 4,398.99 = 2,922.45 : x
  2. Step 2: Convert to fraction form
    3,190.35/4,398.99 = 2,922.45/x
  3. Step 3: Cross multiply
    3,190.35x = 4,398.99 × 2,922.45
  4. Step 4: Simplify right side
    3,190.35x = 12,855,828.33
  5. Step 5: Solve for x
    x = 12,855,828.33/3,190.35
  6. Step 6: Final answer
    x = 4,029.60

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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.