Home / 1,583.18-2,372.84-1,121.09

Finding the Fourth Proportional to 1,583.18, 2,372.84 and 1,121.09

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Solution

The fourth proportional to 1,583.18, 2,372.84 and 1,121.09 is: 1,680.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.18 : 2,372.84 = 1,121.09 : x
  2. Step 2: Convert to fraction form
    1,583.18/2,372.84 = 1,121.09/x
  3. Step 3: Cross multiply
    1,583.18x = 2,372.84 × 1,121.09
  4. Step 4: Simplify right side
    1,583.18x = 2,660,162.83
  5. Step 5: Solve for x
    x = 2,660,162.83/1,583.18
  6. Step 6: Final answer
    x = 1,680.27

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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.