Home / 3,513.84-4,849.18-1,920.48

Finding the Fourth Proportional to 3,513.84, 4,849.18 and 1,920.48

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Solution

The fourth proportional to 3,513.84, 4,849.18 and 1,920.48 is: 2,650.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.84 : 4,849.18 = 1,920.48 : x
  2. Step 2: Convert to fraction form
    3,513.84/4,849.18 = 1,920.48/x
  3. Step 3: Cross multiply
    3,513.84x = 4,849.18 × 1,920.48
  4. Step 4: Simplify right side
    3,513.84x = 9,312,753.21
  5. Step 5: Solve for x
    x = 9,312,753.21/3,513.84
  6. Step 6: Final answer
    x = 2,650.31

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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.