Home / 3,057.24-4,215.75-2,989.51

Finding the Fourth Proportional to 3,057.24, 4,215.75 and 2,989.51

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Solution

The fourth proportional to 3,057.24, 4,215.75 and 2,989.51 is: 4,122.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.24 : 4,215.75 = 2,989.51 : x
  2. Step 2: Convert to fraction form
    3,057.24/4,215.75 = 2,989.51/x
  3. Step 3: Cross multiply
    3,057.24x = 4,215.75 × 2,989.51
  4. Step 4: Simplify right side
    3,057.24x = 12,603,005.03
  5. Step 5: Solve for x
    x = 12,603,005.03/3,057.24
  6. Step 6: Final answer
    x = 4,122.34

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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.