Home / 4,739.29-7,109.77-1,618.56

Finding the Fourth Proportional to 4,739.29, 7,109.77 and 1,618.56

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Solution

The fourth proportional to 4,739.29, 7,109.77 and 1,618.56 is: 2,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.29 : 7,109.77 = 1,618.56 : x
  2. Step 2: Convert to fraction form
    4,739.29/7,109.77 = 1,618.56/x
  3. Step 3: Cross multiply
    4,739.29x = 7,109.77 × 1,618.56
  4. Step 4: Simplify right side
    4,739.29x = 11,507,623.09
  5. Step 5: Solve for x
    x = 11,507,623.09/4,739.29
  6. Step 6: Final answer
    x = 2,428.13

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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.