Home / 3,375.65-4,659.45-2,118.80

Finding the Fourth Proportional to 3,375.65, 4,659.45 and 2,118.80

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Solution

The fourth proportional to 3,375.65, 4,659.45 and 2,118.80 is: 2,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.65 : 4,659.45 = 2,118.80 : x
  2. Step 2: Convert to fraction form
    3,375.65/4,659.45 = 2,118.80/x
  3. Step 3: Cross multiply
    3,375.65x = 4,659.45 × 2,118.80
  4. Step 4: Simplify right side
    3,375.65x = 9,872,442.66
  5. Step 5: Solve for x
    x = 9,872,442.66/3,375.65
  6. Step 6: Final answer
    x = 2,924.60

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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.