Home / 3,893.79-5,373.40-2,401.11

Finding the Fourth Proportional to 3,893.79, 5,373.40 and 2,401.11

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Solution

The fourth proportional to 3,893.79, 5,373.40 and 2,401.11 is: 3,313.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.79 : 5,373.40 = 2,401.11 : x
  2. Step 2: Convert to fraction form
    3,893.79/5,373.40 = 2,401.11/x
  3. Step 3: Cross multiply
    3,893.79x = 5,373.40 × 2,401.11
  4. Step 4: Simplify right side
    3,893.79x = 12,902,143.12
  5. Step 5: Solve for x
    x = 12,902,143.12/3,893.79
  6. Step 6: Final answer
    x = 3,313.51

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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.