Home / 3,057.75-4,219.97-1,731.51

Finding the Fourth Proportional to 3,057.75, 4,219.97 and 1,731.51

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Solution

The fourth proportional to 3,057.75, 4,219.97 and 1,731.51 is: 2,389.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.75 : 4,219.97 = 1,731.51 : x
  2. Step 2: Convert to fraction form
    3,057.75/4,219.97 = 1,731.51/x
  3. Step 3: Cross multiply
    3,057.75x = 4,219.97 × 1,731.51
  4. Step 4: Simplify right side
    3,057.75x = 7,306,911.60
  5. Step 5: Solve for x
    x = 7,306,911.60/3,057.75
  6. Step 6: Final answer
    x = 2,389.64

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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.