Home / 4,920.09-6,789.66-2,681.96

Finding the Fourth Proportional to 4,920.09, 6,789.66 and 2,681.96

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Solution

The fourth proportional to 4,920.09, 6,789.66 and 2,681.96 is: 3,701.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.09 : 6,789.66 = 2,681.96 : x
  2. Step 2: Convert to fraction form
    4,920.09/6,789.66 = 2,681.96/x
  3. Step 3: Cross multiply
    4,920.09x = 6,789.66 × 2,681.96
  4. Step 4: Simplify right side
    4,920.09x = 18,209,586.26
  5. Step 5: Solve for x
    x = 18,209,586.26/4,920.09
  6. Step 6: Final answer
    x = 3,701.07

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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.