Home / 2,221.46-3,066.81-1,619.45

Finding the Fourth Proportional to 2,221.46, 3,066.81 and 1,619.45

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Solution

The fourth proportional to 2,221.46, 3,066.81 and 1,619.45 is: 2,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.46 : 3,066.81 = 1,619.45 : x
  2. Step 2: Convert to fraction form
    2,221.46/3,066.81 = 1,619.45/x
  3. Step 3: Cross multiply
    2,221.46x = 3,066.81 × 1,619.45
  4. Step 4: Simplify right side
    2,221.46x = 4,966,545.45
  5. Step 5: Solve for x
    x = 4,966,545.45/2,221.46
  6. Step 6: Final answer
    x = 2,235.71

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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.