Home / 3,894.29-5,368.55-2,401.21

Finding the Fourth Proportional to 3,894.29, 5,368.55 and 2,401.21

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Solution

The fourth proportional to 3,894.29, 5,368.55 and 2,401.21 is: 3,310.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.29 : 5,368.55 = 2,401.21 : x
  2. Step 2: Convert to fraction form
    3,894.29/5,368.55 = 2,401.21/x
  3. Step 3: Cross multiply
    3,894.29x = 5,368.55 × 2,401.21
  4. Step 4: Simplify right side
    3,894.29x = 12,891,015.95
  5. Step 5: Solve for x
    x = 12,891,015.95/3,894.29
  6. Step 6: Final answer
    x = 3,310.24

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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.