Home / 2,939.51-4,056.31-1,613.18

Finding the Fourth Proportional to 2,939.51, 4,056.31 and 1,613.18

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Solution

The fourth proportional to 2,939.51, 4,056.31 and 1,613.18 is: 2,226.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.51 : 4,056.31 = 1,613.18 : x
  2. Step 2: Convert to fraction form
    2,939.51/4,056.31 = 1,613.18/x
  3. Step 3: Cross multiply
    2,939.51x = 4,056.31 × 1,613.18
  4. Step 4: Simplify right side
    2,939.51x = 6,543,558.17
  5. Step 5: Solve for x
    x = 6,543,558.17/2,939.51
  6. Step 6: Final answer
    x = 2,226.07

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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.