Home / 3,513.81-4,849.36-1,942.21

Finding the Fourth Proportional to 3,513.81, 4,849.36 and 1,942.21

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Solution

The fourth proportional to 3,513.81, 4,849.36 and 1,942.21 is: 2,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.81 : 4,849.36 = 1,942.21 : x
  2. Step 2: Convert to fraction form
    3,513.81/4,849.36 = 1,942.21/x
  3. Step 3: Cross multiply
    3,513.81x = 4,849.36 × 1,942.21
  4. Step 4: Simplify right side
    3,513.81x = 9,418,451.24
  5. Step 5: Solve for x
    x = 9,418,451.24/3,513.81
  6. Step 6: Final answer
    x = 2,680.41

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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.