Home / 3,057.69-4,219.49-1,731.31

Finding the Fourth Proportional to 3,057.69, 4,219.49 and 1,731.31

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Solution

The fourth proportional to 3,057.69, 4,219.49 and 1,731.31 is: 2,389.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.69 : 4,219.49 = 1,731.31 : x
  2. Step 2: Convert to fraction form
    3,057.69/4,219.49 = 1,731.31/x
  3. Step 3: Cross multiply
    3,057.69x = 4,219.49 × 1,731.31
  4. Step 4: Simplify right side
    3,057.69x = 7,305,253.01
  5. Step 5: Solve for x
    x = 7,305,253.01/3,057.69
  6. Step 6: Final answer
    x = 2,389.14

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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.