Home / 1,819.42-2,508.66-1,521.34

Finding the Fourth Proportional to 1,819.42, 2,508.66 and 1,521.34

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Solution

The fourth proportional to 1,819.42, 2,508.66 and 1,521.34 is: 2,097.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.42 : 2,508.66 = 1,521.34 : x
  2. Step 2: Convert to fraction form
    1,819.42/2,508.66 = 1,521.34/x
  3. Step 3: Cross multiply
    1,819.42x = 2,508.66 × 1,521.34
  4. Step 4: Simplify right side
    1,819.42x = 3,816,524.80
  5. Step 5: Solve for x
    x = 3,816,524.80/1,819.42
  6. Step 6: Final answer
    x = 2,097.66

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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.