Home / 2,582.73-3,873.40-1,121.53

Finding the Fourth Proportional to 2,582.73, 3,873.40 and 1,121.53

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Solution

The fourth proportional to 2,582.73, 3,873.40 and 1,121.53 is: 1,682.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,582.73 : 3,873.40 = 1,121.53 : x
  2. Step 2: Convert to fraction form
    2,582.73/3,873.40 = 1,121.53/x
  3. Step 3: Cross multiply
    2,582.73x = 3,873.40 × 1,121.53
  4. Step 4: Simplify right side
    2,582.73x = 4,344,136.34
  5. Step 5: Solve for x
    x = 4,344,136.34/2,582.73
  6. Step 6: Final answer
    x = 1,682.00

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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.