Home / 2,939.55-4,056.63-1,613.38

Finding the Fourth Proportional to 2,939.55, 4,056.63 and 1,613.38

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Solution

The fourth proportional to 2,939.55, 4,056.63 and 1,613.38 is: 2,226.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.55 : 4,056.63 = 1,613.38 : x
  2. Step 2: Convert to fraction form
    2,939.55/4,056.63 = 1,613.38/x
  3. Step 3: Cross multiply
    2,939.55x = 4,056.63 × 1,613.38
  4. Step 4: Simplify right side
    2,939.55x = 6,544,857.36
  5. Step 5: Solve for x
    x = 6,544,857.36/2,939.55
  6. Step 6: Final answer
    x = 2,226.48

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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.