Home / 2,728.96-4,090.98-1,851.76

Finding the Fourth Proportional to 2,728.96, 4,090.98 and 1,851.76

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Solution

The fourth proportional to 2,728.96, 4,090.98 and 1,851.76 is: 2,775.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.96 : 4,090.98 = 1,851.76 : x
  2. Step 2: Convert to fraction form
    2,728.96/4,090.98 = 1,851.76/x
  3. Step 3: Cross multiply
    2,728.96x = 4,090.98 × 1,851.76
  4. Step 4: Simplify right side
    2,728.96x = 7,575,513.12
  5. Step 5: Solve for x
    x = 7,575,513.12/2,728.96
  6. Step 6: Final answer
    x = 2,775.97

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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.