Home / 2,291.09-3,437.24-1,121.99

Finding the Fourth Proportional to 2,291.09, 3,437.24 and 1,121.99

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Solution

The fourth proportional to 2,291.09, 3,437.24 and 1,121.99 is: 1,683.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.09 : 3,437.24 = 1,121.99 : x
  2. Step 2: Convert to fraction form
    2,291.09/3,437.24 = 1,121.99/x
  3. Step 3: Cross multiply
    2,291.09x = 3,437.24 × 1,121.99
  4. Step 4: Simplify right side
    2,291.09x = 3,856,526.11
  5. Step 5: Solve for x
    x = 3,856,526.11/2,291.09
  6. Step 6: Final answer
    x = 1,683.28

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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.