Home / 3,019.86-4,168.32-1,957.68

Finding the Fourth Proportional to 3,019.86, 4,168.32 and 1,957.68

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Solution

The fourth proportional to 3,019.86, 4,168.32 and 1,957.68 is: 2,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.86 : 4,168.32 = 1,957.68 : x
  2. Step 2: Convert to fraction form
    3,019.86/4,168.32 = 1,957.68/x
  3. Step 3: Cross multiply
    3,019.86x = 4,168.32 × 1,957.68
  4. Step 4: Simplify right side
    3,019.86x = 8,160,236.70
  5. Step 5: Solve for x
    x = 8,160,236.70/3,019.86
  6. Step 6: Final answer
    x = 2,702.19

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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.