Home / 3,379.04-4,663.70-2,121.22

Finding the Fourth Proportional to 3,379.04, 4,663.70 and 2,121.22

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Solution

The fourth proportional to 3,379.04, 4,663.70 and 2,121.22 is: 2,927.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.04 : 4,663.70 = 2,121.22 : x
  2. Step 2: Convert to fraction form
    3,379.04/4,663.70 = 2,121.22/x
  3. Step 3: Cross multiply
    3,379.04x = 4,663.70 × 2,121.22
  4. Step 4: Simplify right side
    3,379.04x = 9,892,733.71
  5. Step 5: Solve for x
    x = 9,892,733.71/3,379.04
  6. Step 6: Final answer
    x = 2,927.68

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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.