Home / 3,379.08-4,663.22-2,120.19

Finding the Fourth Proportional to 3,379.08, 4,663.22 and 2,120.19

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Solution

The fourth proportional to 3,379.08, 4,663.22 and 2,120.19 is: 2,925.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.08 : 4,663.22 = 2,120.19 : x
  2. Step 2: Convert to fraction form
    3,379.08/4,663.22 = 2,120.19/x
  3. Step 3: Cross multiply
    3,379.08x = 4,663.22 × 2,120.19
  4. Step 4: Simplify right side
    3,379.08x = 9,886,901.81
  5. Step 5: Solve for x
    x = 9,886,901.81/3,379.08
  6. Step 6: Final answer
    x = 2,925.92

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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.