Home / 3,057.70-4,219.77-1,731.38

Finding the Fourth Proportional to 3,057.70, 4,219.77 and 1,731.38

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Solution

The fourth proportional to 3,057.70, 4,219.77 and 1,731.38 is: 2,389.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.70 : 4,219.77 = 1,731.38 : x
  2. Step 2: Convert to fraction form
    3,057.70/4,219.77 = 1,731.38/x
  3. Step 3: Cross multiply
    3,057.70x = 4,219.77 × 1,731.38
  4. Step 4: Simplify right side
    3,057.70x = 7,306,005.91
  5. Step 5: Solve for x
    x = 7,306,005.91/3,057.70
  6. Step 6: Final answer
    x = 2,389.38

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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.