Home / 2,939.46-4,056.47-1,613.15

Finding the Fourth Proportional to 2,939.46, 4,056.47 and 1,613.15

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Solution

The fourth proportional to 2,939.46, 4,056.47 and 1,613.15 is: 2,226.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.46 : 4,056.47 = 1,613.15 : x
  2. Step 2: Convert to fraction form
    2,939.46/4,056.47 = 1,613.15/x
  3. Step 3: Cross multiply
    2,939.46x = 4,056.47 × 1,613.15
  4. Step 4: Simplify right side
    2,939.46x = 6,543,666.23
  5. Step 5: Solve for x
    x = 6,543,666.23/2,939.46
  6. Step 6: Final answer
    x = 2,226.15

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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.