Home / 3,165.06-4,742.10-1,928.64

Finding the Fourth Proportional to 3,165.06, 4,742.10 and 1,928.64

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Solution

The fourth proportional to 3,165.06, 4,742.10 and 1,928.64 is: 2,889.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.06 : 4,742.10 = 1,928.64 : x
  2. Step 2: Convert to fraction form
    3,165.06/4,742.10 = 1,928.64/x
  3. Step 3: Cross multiply
    3,165.06x = 4,742.10 × 1,928.64
  4. Step 4: Simplify right side
    3,165.06x = 9,145,803.74
  5. Step 5: Solve for x
    x = 9,145,803.74/3,165.06
  6. Step 6: Final answer
    x = 2,889.61

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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.