Home / 4,465.19-6,689.07-2,121.86

Finding the Fourth Proportional to 4,465.19, 6,689.07 and 2,121.86

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Solution

The fourth proportional to 4,465.19, 6,689.07 and 2,121.86 is: 3,178.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,465.19 : 6,689.07 = 2,121.86 : x
  2. Step 2: Convert to fraction form
    4,465.19/6,689.07 = 2,121.86/x
  3. Step 3: Cross multiply
    4,465.19x = 6,689.07 × 2,121.86
  4. Step 4: Simplify right side
    4,465.19x = 14,193,236.62
  5. Step 5: Solve for x
    x = 14,193,236.62/4,465.19
  6. Step 6: Final answer
    x = 3,178.64

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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.