Home / 3,955.21-5,928.30-1,322.09

Finding the Fourth Proportional to 3,955.21, 5,928.30 and 1,322.09

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Solution

The fourth proportional to 3,955.21, 5,928.30 and 1,322.09 is: 1,981.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.21 : 5,928.30 = 1,322.09 : x
  2. Step 2: Convert to fraction form
    3,955.21/5,928.30 = 1,322.09/x
  3. Step 3: Cross multiply
    3,955.21x = 5,928.30 × 1,322.09
  4. Step 4: Simplify right side
    3,955.21x = 7,837,746.15
  5. Step 5: Solve for x
    x = 7,837,746.15/3,955.21
  6. Step 6: Final answer
    x = 1,981.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.