Home / 2,731.78-3,769.70-1,613.07

Finding the Fourth Proportional to 2,731.78, 3,769.70 and 1,613.07

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Solution

The fourth proportional to 2,731.78, 3,769.70 and 1,613.07 is: 2,225.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.78 : 3,769.70 = 1,613.07 : x
  2. Step 2: Convert to fraction form
    2,731.78/3,769.70 = 1,613.07/x
  3. Step 3: Cross multiply
    2,731.78x = 3,769.70 × 1,613.07
  4. Step 4: Simplify right side
    2,731.78x = 6,080,781.91
  5. Step 5: Solve for x
    x = 6,080,781.91/2,731.78
  6. Step 6: Final answer
    x = 2,225.94

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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.