Home / 3,124.23-4,309.32-1,945.86

Finding the Fourth Proportional to 3,124.23, 4,309.32 and 1,945.86

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Solution

The fourth proportional to 3,124.23, 4,309.32 and 1,945.86 is: 2,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.23 : 4,309.32 = 1,945.86 : x
  2. Step 2: Convert to fraction form
    3,124.23/4,309.32 = 1,945.86/x
  3. Step 3: Cross multiply
    3,124.23x = 4,309.32 × 1,945.86
  4. Step 4: Simplify right side
    3,124.23x = 8,385,333.42
  5. Step 5: Solve for x
    x = 8,385,333.42/3,124.23
  6. Step 6: Final answer
    x = 2,683.97

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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.