Home / 2,121.99-2,927.23-1,589.82

Finding the Fourth Proportional to 2,121.99, 2,927.23 and 1,589.82

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Solution

The fourth proportional to 2,121.99, 2,927.23 and 1,589.82 is: 2,193.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.99 : 2,927.23 = 1,589.82 : x
  2. Step 2: Convert to fraction form
    2,121.99/2,927.23 = 1,589.82/x
  3. Step 3: Cross multiply
    2,121.99x = 2,927.23 × 1,589.82
  4. Step 4: Simplify right side
    2,121.99x = 4,653,768.80
  5. Step 5: Solve for x
    x = 4,653,768.80/2,121.99
  6. Step 6: Final answer
    x = 2,193.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.