Home / 2,213.16-3,319.71-753.33

Finding the Fourth Proportional to 2,213.16, 3,319.71 and 753.33

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Solution

The fourth proportional to 2,213.16, 3,319.71 and 753.33 is: 1,129.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.16 : 3,319.71 = 753.33 : x
  2. Step 2: Convert to fraction form
    2,213.16/3,319.71 = 753.33/x
  3. Step 3: Cross multiply
    2,213.16x = 3,319.71 × 753.33
  4. Step 4: Simplify right side
    2,213.16x = 2,500,837.13
  5. Step 5: Solve for x
    x = 2,500,837.13/2,213.16
  6. Step 6: Final answer
    x = 1,129.98

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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.