Home / 3,867.84-5,330.43-2,748.87

Finding the Fourth Proportional to 3,867.84, 5,330.43 and 2,748.87

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Solution

The fourth proportional to 3,867.84, 5,330.43 and 2,748.87 is: 3,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.84 : 5,330.43 = 2,748.87 : x
  2. Step 2: Convert to fraction form
    3,867.84/5,330.43 = 2,748.87/x
  3. Step 3: Cross multiply
    3,867.84x = 5,330.43 × 2,748.87
  4. Step 4: Simplify right side
    3,867.84x = 14,652,659.11
  5. Step 5: Solve for x
    x = 14,652,659.11/3,867.84
  6. Step 6: Final answer
    x = 3,788.33

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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.