Home / 3,057.30-4,218.95-1,731.29

Finding the Fourth Proportional to 3,057.30, 4,218.95 and 1,731.29

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Solution

The fourth proportional to 3,057.30, 4,218.95 and 1,731.29 is: 2,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.30 : 4,218.95 = 1,731.29 : x
  2. Step 2: Convert to fraction form
    3,057.30/4,218.95 = 1,731.29/x
  3. Step 3: Cross multiply
    3,057.30x = 4,218.95 × 1,731.29
  4. Step 4: Simplify right side
    3,057.30x = 7,304,209.18
  5. Step 5: Solve for x
    x = 7,304,209.18/3,057.30
  6. Step 6: Final answer
    x = 2,389.10

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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.