Home / 3,379.19-4,663.36-2,120.30

Finding the Fourth Proportional to 3,379.19, 4,663.36 and 2,120.30

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Solution

The fourth proportional to 3,379.19, 4,663.36 and 2,120.30 is: 2,926.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.19 : 4,663.36 = 2,120.30 : x
  2. Step 2: Convert to fraction form
    3,379.19/4,663.36 = 2,120.30/x
  3. Step 3: Cross multiply
    3,379.19x = 4,663.36 × 2,120.30
  4. Step 4: Simplify right side
    3,379.19x = 9,887,693.59
  5. Step 5: Solve for x
    x = 9,887,693.59/3,379.19
  6. Step 6: Final answer
    x = 2,926.06

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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.