Home / 3,928.08-5,421.06-2,250.02

Finding the Fourth Proportional to 3,928.08, 5,421.06 and 2,250.02

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Solution

The fourth proportional to 3,928.08, 5,421.06 and 2,250.02 is: 3,105.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.08 : 5,421.06 = 2,250.02 : x
  2. Step 2: Convert to fraction form
    3,928.08/5,421.06 = 2,250.02/x
  3. Step 3: Cross multiply
    3,928.08x = 5,421.06 × 2,250.02
  4. Step 4: Simplify right side
    3,928.08x = 12,197,466.32
  5. Step 5: Solve for x
    x = 12,197,466.32/3,928.08
  6. Step 6: Final answer
    x = 3,105.20

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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.