Home / 4,090.64-5,645.67-2,321.87

Finding the Fourth Proportional to 4,090.64, 5,645.67 and 2,321.87

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Solution

The fourth proportional to 4,090.64, 5,645.67 and 2,321.87 is: 3,204.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.64 : 5,645.67 = 2,321.87 : x
  2. Step 2: Convert to fraction form
    4,090.64/5,645.67 = 2,321.87/x
  3. Step 3: Cross multiply
    4,090.64x = 5,645.67 × 2,321.87
  4. Step 4: Simplify right side
    4,090.64x = 13,108,511.80
  5. Step 5: Solve for x
    x = 13,108,511.80/4,090.64
  6. Step 6: Final answer
    x = 3,204.51

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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.