Home / 2,939.42-4,056.46-1,613.18

Finding the Fourth Proportional to 2,939.42, 4,056.46 and 1,613.18

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Solution

The fourth proportional to 2,939.42, 4,056.46 and 1,613.18 is: 2,226.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.42 : 4,056.46 = 1,613.18 : x
  2. Step 2: Convert to fraction form
    2,939.42/4,056.46 = 1,613.18/x
  3. Step 3: Cross multiply
    2,939.42x = 4,056.46 × 1,613.18
  4. Step 4: Simplify right side
    2,939.42x = 6,543,800.14
  5. Step 5: Solve for x
    x = 6,543,800.14/2,939.42
  6. Step 6: Final answer
    x = 2,226.22

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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.