Home / 3,885.84-5,360.40-2,392.56

Finding the Fourth Proportional to 3,885.84, 5,360.40 and 2,392.56

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Solution

The fourth proportional to 3,885.84, 5,360.40 and 2,392.56 is: 3,300.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.84 : 5,360.40 = 2,392.56 : x
  2. Step 2: Convert to fraction form
    3,885.84/5,360.40 = 2,392.56/x
  3. Step 3: Cross multiply
    3,885.84x = 5,360.40 × 2,392.56
  4. Step 4: Simplify right side
    3,885.84x = 12,825,078.62
  5. Step 5: Solve for x
    x = 12,825,078.62/3,885.84
  6. Step 6: Final answer
    x = 3,300.46

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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.