Home / 1,213.01-1,819.79-1,192.35

Finding the Fourth Proportional to 1,213.01, 1,819.79 and 1,192.35

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Solution

The fourth proportional to 1,213.01, 1,819.79 and 1,192.35 is: 1,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213.01 : 1,819.79 = 1,192.35 : x
  2. Step 2: Convert to fraction form
    1,213.01/1,819.79 = 1,192.35/x
  3. Step 3: Cross multiply
    1,213.01x = 1,819.79 × 1,192.35
  4. Step 4: Simplify right side
    1,213.01x = 2,169,820.64
  5. Step 5: Solve for x
    x = 2,169,820.64/1,213.01
  6. Step 6: Final answer
    x = 1,788.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.