Home / 4,789.29-7,181.51-2,190

Finding the Fourth Proportional to 4,789.29, 7,181.51 and 2,190

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Solution

The fourth proportional to 4,789.29, 7,181.51 and 2,190 is: 3,283.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.29 : 7,181.51 = 2,190 : x
  2. Step 2: Convert to fraction form
    4,789.29/7,181.51 = 2,190/x
  3. Step 3: Cross multiply
    4,789.29x = 7,181.51 × 2,190
  4. Step 4: Simplify right side
    4,789.29x = 15,727,495.95
  5. Step 5: Solve for x
    x = 15,727,495.95/4,789.29
  6. Step 6: Final answer
    x = 3,283.89

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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.