Home / 2,841.80-3,921.66-1,582.79

Finding the Fourth Proportional to 2,841.80, 3,921.66 and 1,582.79

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Solution

The fourth proportional to 2,841.80, 3,921.66 and 1,582.79 is: 2,184.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.80 : 3,921.66 = 1,582.79 : x
  2. Step 2: Convert to fraction form
    2,841.80/3,921.66 = 1,582.79/x
  3. Step 3: Cross multiply
    2,841.80x = 3,921.66 × 1,582.79
  4. Step 4: Simplify right side
    2,841.80x = 6,207,144.62
  5. Step 5: Solve for x
    x = 6,207,144.62/2,841.80
  6. Step 6: Final answer
    x = 2,184.23

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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.