Home / 3,347.75-4,619.89-2,021.19

Finding the Fourth Proportional to 3,347.75, 4,619.89 and 2,021.19

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Solution

The fourth proportional to 3,347.75, 4,619.89 and 2,021.19 is: 2,789.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.75 : 4,619.89 = 2,021.19 : x
  2. Step 2: Convert to fraction form
    3,347.75/4,619.89 = 2,021.19/x
  3. Step 3: Cross multiply
    3,347.75x = 4,619.89 × 2,021.19
  4. Step 4: Simplify right side
    3,347.75x = 9,337,675.47
  5. Step 5: Solve for x
    x = 9,337,675.47/3,347.75
  6. Step 6: Final answer
    x = 2,789.24

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Half scale
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Double scale
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1.5x scale

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.