Home / 3,180.59-4,391.04-2,118.07

Finding the Fourth Proportional to 3,180.59, 4,391.04 and 2,118.07

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Solution

The fourth proportional to 3,180.59, 4,391.04 and 2,118.07 is: 2,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.59 : 4,391.04 = 2,118.07 : x
  2. Step 2: Convert to fraction form
    3,180.59/4,391.04 = 2,118.07/x
  3. Step 3: Cross multiply
    3,180.59x = 4,391.04 × 2,118.07
  4. Step 4: Simplify right side
    3,180.59x = 9,300,530.09
  5. Step 5: Solve for x
    x = 9,300,530.09/3,180.59
  6. Step 6: Final answer
    x = 2,924.15

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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.