Home / 4,885-6,741.30-2,789.18

Finding the Fourth Proportional to 4,885, 6,741.30 and 2,789.18

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Solution

The fourth proportional to 4,885, 6,741.30 and 2,789.18 is: 3,849.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885 : 6,741.30 = 2,789.18 : x
  2. Step 2: Convert to fraction form
    4,885/6,741.30 = 2,789.18/x
  3. Step 3: Cross multiply
    4,885x = 6,741.30 × 2,789.18
  4. Step 4: Simplify right side
    4,885x = 18,802,699.13
  5. Step 5: Solve for x
    x = 18,802,699.13/4,885
  6. Step 6: Final answer
    x = 3,849.07

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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.