Home / 1,282.12-1,922.99-357.58

Finding the Fourth Proportional to 1,282.12, 1,922.99 and 357.58

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Solution

The fourth proportional to 1,282.12, 1,922.99 and 357.58 is: 536.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282.12 : 1,922.99 = 357.58 : x
  2. Step 2: Convert to fraction form
    1,282.12/1,922.99 = 357.58/x
  3. Step 3: Cross multiply
    1,282.12x = 1,922.99 × 357.58
  4. Step 4: Simplify right side
    1,282.12x = 687,622.76
  5. Step 5: Solve for x
    x = 687,622.76/1,282.12
  6. Step 6: Final answer
    x = 536.32

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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.