Home / 4,090.83-5,645.49-2,897.97

Finding the Fourth Proportional to 4,090.83, 5,645.49 and 2,897.97

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Solution

The fourth proportional to 4,090.83, 5,645.49 and 2,897.97 is: 3,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.83 : 5,645.49 = 2,897.97 : x
  2. Step 2: Convert to fraction form
    4,090.83/5,645.49 = 2,897.97/x
  3. Step 3: Cross multiply
    4,090.83x = 5,645.49 × 2,897.97
  4. Step 4: Simplify right side
    4,090.83x = 16,360,460.66
  5. Step 5: Solve for x
    x = 16,360,460.66/4,090.83
  6. Step 6: Final answer
    x = 3,999.30

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1.5x scale

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.