Home / 2,939.26-4,056.21-1,612.87

Finding the Fourth Proportional to 2,939.26, 4,056.21 and 1,612.87

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Solution

The fourth proportional to 2,939.26, 4,056.21 and 1,612.87 is: 2,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.26 : 4,056.21 = 1,612.87 : x
  2. Step 2: Convert to fraction form
    2,939.26/4,056.21 = 1,612.87/x
  3. Step 3: Cross multiply
    2,939.26x = 4,056.21 × 1,612.87
  4. Step 4: Simplify right side
    2,939.26x = 6,542,139.42
  5. Step 5: Solve for x
    x = 6,542,139.42/2,939.26
  6. Step 6: Final answer
    x = 2,225.78

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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.