Home / 4,286.79-6,427.35-2,821.50

Finding the Fourth Proportional to 4,286.79, 6,427.35 and 2,821.50

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Solution

The fourth proportional to 4,286.79, 6,427.35 and 2,821.50 is: 4,230.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.79 : 6,427.35 = 2,821.50 : x
  2. Step 2: Convert to fraction form
    4,286.79/6,427.35 = 2,821.50/x
  3. Step 3: Cross multiply
    4,286.79x = 6,427.35 × 2,821.50
  4. Step 4: Simplify right side
    4,286.79x = 18,134,768.03
  5. Step 5: Solve for x
    x = 18,134,768.03/4,286.79
  6. Step 6: Final answer
    x = 4,230.38

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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.