Home / 2,821.23-4,239.51-1,505.90

Finding the Fourth Proportional to 2,821.23, 4,239.51 and 1,505.90

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Solution

The fourth proportional to 2,821.23, 4,239.51 and 1,505.90 is: 2,262.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.23 : 4,239.51 = 1,505.90 : x
  2. Step 2: Convert to fraction form
    2,821.23/4,239.51 = 1,505.90/x
  3. Step 3: Cross multiply
    2,821.23x = 4,239.51 × 1,505.90
  4. Step 4: Simplify right side
    2,821.23x = 6,384,256.91
  5. Step 5: Solve for x
    x = 6,384,256.91/2,821.23
  6. Step 6: Final answer
    x = 2,262.93

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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.