Home / 3,928.74-5,422.81-2,336.51

Finding the Fourth Proportional to 3,928.74, 5,422.81 and 2,336.51

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Solution

The fourth proportional to 3,928.74, 5,422.81 and 2,336.51 is: 3,225.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.74 : 5,422.81 = 2,336.51 : x
  2. Step 2: Convert to fraction form
    3,928.74/5,422.81 = 2,336.51/x
  3. Step 3: Cross multiply
    3,928.74x = 5,422.81 × 2,336.51
  4. Step 4: Simplify right side
    3,928.74x = 12,670,416.84
  5. Step 5: Solve for x
    x = 12,670,416.84/3,928.74
  6. Step 6: Final answer
    x = 3,225.06

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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.