Home / 2,999.13-4,138.76-1,673.16

Finding the Fourth Proportional to 2,999.13, 4,138.76 and 1,673.16

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Solution

The fourth proportional to 2,999.13, 4,138.76 and 1,673.16 is: 2,308.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.13 : 4,138.76 = 1,673.16 : x
  2. Step 2: Convert to fraction form
    2,999.13/4,138.76 = 1,673.16/x
  3. Step 3: Cross multiply
    2,999.13x = 4,138.76 × 1,673.16
  4. Step 4: Simplify right side
    2,999.13x = 6,924,796.34
  5. Step 5: Solve for x
    x = 6,924,796.34/2,999.13
  6. Step 6: Final answer
    x = 2,308.94

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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.