Home / 2,905.26-4,359.10-1,605.21

Finding the Fourth Proportional to 2,905.26, 4,359.10 and 1,605.21

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Solution

The fourth proportional to 2,905.26, 4,359.10 and 1,605.21 is: 2,408.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.26 : 4,359.10 = 1,605.21 : x
  2. Step 2: Convert to fraction form
    2,905.26/4,359.10 = 1,605.21/x
  3. Step 3: Cross multiply
    2,905.26x = 4,359.10 × 1,605.21
  4. Step 4: Simplify right side
    2,905.26x = 6,997,270.91
  5. Step 5: Solve for x
    x = 6,997,270.91/2,905.26
  6. Step 6: Final answer
    x = 2,408.48

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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.