Home / 3,956.36-5,459.86-2,188.16

Finding the Fourth Proportional to 3,956.36, 5,459.86 and 2,188.16

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Solution

The fourth proportional to 3,956.36, 5,459.86 and 2,188.16 is: 3,019.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.36 : 5,459.86 = 2,188.16 : x
  2. Step 2: Convert to fraction form
    3,956.36/5,459.86 = 2,188.16/x
  3. Step 3: Cross multiply
    3,956.36x = 5,459.86 × 2,188.16
  4. Step 4: Simplify right side
    3,956.36x = 11,947,047.26
  5. Step 5: Solve for x
    x = 11,947,047.26/3,956.36
  6. Step 6: Final answer
    x = 3,019.71

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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.