Home / 4,851.40-6,687.87-3,857.08

Finding the Fourth Proportional to 4,851.40, 6,687.87 and 3,857.08

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Solution

The fourth proportional to 4,851.40, 6,687.87 and 3,857.08 is: 5,317.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,851.40 : 6,687.87 = 3,857.08 : x
  2. Step 2: Convert to fraction form
    4,851.40/6,687.87 = 3,857.08/x
  3. Step 3: Cross multiply
    4,851.40x = 6,687.87 × 3,857.08
  4. Step 4: Simplify right side
    4,851.40x = 25,795,649.62
  5. Step 5: Solve for x
    x = 25,795,649.62/4,851.40
  6. Step 6: Final answer
    x = 5,317.16

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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.