Home / 3,956.28-5,459.60-2,188.08

Finding the Fourth Proportional to 3,956.28, 5,459.60 and 2,188.08

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Solution

The fourth proportional to 3,956.28, 5,459.60 and 2,188.08 is: 3,019.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.28 : 5,459.60 = 2,188.08 : x
  2. Step 2: Convert to fraction form
    3,956.28/5,459.60 = 2,188.08/x
  3. Step 3: Cross multiply
    3,956.28x = 5,459.60 × 2,188.08
  4. Step 4: Simplify right side
    3,956.28x = 11,946,041.57
  5. Step 5: Solve for x
    x = 11,946,041.57/3,956.28
  6. Step 6: Final answer
    x = 3,019.51

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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.