Home / 3,057.89-4,220.64-1,732.38

Finding the Fourth Proportional to 3,057.89, 4,220.64 and 1,732.38

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Solution

The fourth proportional to 3,057.89, 4,220.64 and 1,732.38 is: 2,391.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.89 : 4,220.64 = 1,732.38 : x
  2. Step 2: Convert to fraction form
    3,057.89/4,220.64 = 1,732.38/x
  3. Step 3: Cross multiply
    3,057.89x = 4,220.64 × 1,732.38
  4. Step 4: Simplify right side
    3,057.89x = 7,311,731.22
  5. Step 5: Solve for x
    x = 7,311,731.22/3,057.89
  6. Step 6: Final answer
    x = 2,391.11

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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.