Home / 3,165.14-4,742.57-1,928.79

Finding the Fourth Proportional to 3,165.14, 4,742.57 and 1,928.79

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Solution

The fourth proportional to 3,165.14, 4,742.57 and 1,928.79 is: 2,890.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.14 : 4,742.57 = 1,928.79 : x
  2. Step 2: Convert to fraction form
    3,165.14/4,742.57 = 1,928.79/x
  3. Step 3: Cross multiply
    3,165.14x = 4,742.57 × 1,928.79
  4. Step 4: Simplify right side
    3,165.14x = 9,147,411.95
  5. Step 5: Solve for x
    x = 9,147,411.95/3,165.14
  6. Step 6: Final answer
    x = 2,890.05

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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.