Home / 4,739.30-7,109.69-1,619.46

Finding the Fourth Proportional to 4,739.30, 7,109.69 and 1,619.46

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Solution

The fourth proportional to 4,739.30, 7,109.69 and 1,619.46 is: 2,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.30 : 7,109.69 = 1,619.46 : x
  2. Step 2: Convert to fraction form
    4,739.30/7,109.69 = 1,619.46/x
  3. Step 3: Cross multiply
    4,739.30x = 7,109.69 × 1,619.46
  4. Step 4: Simplify right side
    4,739.30x = 11,513,850.47
  5. Step 5: Solve for x
    x = 11,513,850.47/4,739.30
  6. Step 6: Final answer
    x = 2,429.44

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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.