Home / 3,401.49-4,689.54-2,220.51

Finding the Fourth Proportional to 3,401.49, 4,689.54 and 2,220.51

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Solution

The fourth proportional to 3,401.49, 4,689.54 and 2,220.51 is: 3,061.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.49 : 4,689.54 = 2,220.51 : x
  2. Step 2: Convert to fraction form
    3,401.49/4,689.54 = 2,220.51/x
  3. Step 3: Cross multiply
    3,401.49x = 4,689.54 × 2,220.51
  4. Step 4: Simplify right side
    3,401.49x = 10,413,170.47
  5. Step 5: Solve for x
    x = 10,413,170.47/3,401.49
  6. Step 6: Final answer
    x = 3,061.36

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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.