Home / 3,930.84-5,422.14-2,604.06

Finding the Fourth Proportional to 3,930.84, 5,422.14 and 2,604.06

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Solution

The fourth proportional to 3,930.84, 5,422.14 and 2,604.06 is: 3,592.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.84 : 5,422.14 = 2,604.06 : x
  2. Step 2: Convert to fraction form
    3,930.84/5,422.14 = 2,604.06/x
  3. Step 3: Cross multiply
    3,930.84x = 5,422.14 × 2,604.06
  4. Step 4: Simplify right side
    3,930.84x = 14,119,577.89
  5. Step 5: Solve for x
    x = 14,119,577.89/3,930.84
  6. Step 6: Final answer
    x = 3,592.00

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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.