Home / 3,617.24-4,989.66-2,219

Finding the Fourth Proportional to 3,617.24, 4,989.66 and 2,219

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Solution

The fourth proportional to 3,617.24, 4,989.66 and 2,219 is: 3,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.24 : 4,989.66 = 2,219 : x
  2. Step 2: Convert to fraction form
    3,617.24/4,989.66 = 2,219/x
  3. Step 3: Cross multiply
    3,617.24x = 4,989.66 × 2,219
  4. Step 4: Simplify right side
    3,617.24x = 11,072,055.54
  5. Step 5: Solve for x
    x = 11,072,055.54/3,617.24
  6. Step 6: Final answer
    x = 3,060.91

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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.