Home / 2,214.13-3,321.09-753.31

Finding the Fourth Proportional to 2,214.13, 3,321.09 and 753.31

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Solution

The fourth proportional to 2,214.13, 3,321.09 and 753.31 is: 1,129.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.13 : 3,321.09 = 753.31 : x
  2. Step 2: Convert to fraction form
    2,214.13/3,321.09 = 753.31/x
  3. Step 3: Cross multiply
    2,214.13x = 3,321.09 × 753.31
  4. Step 4: Simplify right side
    2,214.13x = 2,501,810.31
  5. Step 5: Solve for x
    x = 2,501,810.31/2,214.13
  6. Step 6: Final answer
    x = 1,129.93

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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.