Home / 3,057.35-4,218.89-1,731.38

Finding the Fourth Proportional to 3,057.35, 4,218.89 and 1,731.38

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Solution

The fourth proportional to 3,057.35, 4,218.89 and 1,731.38 is: 2,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.35 : 4,218.89 = 1,731.38 : x
  2. Step 2: Convert to fraction form
    3,057.35/4,218.89 = 1,731.38/x
  3. Step 3: Cross multiply
    3,057.35x = 4,218.89 × 1,731.38
  4. Step 4: Simplify right side
    3,057.35x = 7,304,472.02
  5. Step 5: Solve for x
    x = 7,304,472.02/3,057.35
  6. Step 6: Final answer
    x = 2,389.16

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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.