Home / 3,956.85-5,459.94-2,188.35

Finding the Fourth Proportional to 3,956.85, 5,459.94 and 2,188.35

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Solution

The fourth proportional to 3,956.85, 5,459.94 and 2,188.35 is: 3,019.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.85 : 5,459.94 = 2,188.35 : x
  2. Step 2: Convert to fraction form
    3,956.85/5,459.94 = 2,188.35/x
  3. Step 3: Cross multiply
    3,956.85x = 5,459.94 × 2,188.35
  4. Step 4: Simplify right side
    3,956.85x = 11,948,259.70
  5. Step 5: Solve for x
    x = 11,948,259.70/3,956.85
  6. Step 6: Final answer
    x = 3,019.64

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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.