Home / 4,285.46-6,431.84-1,690.22

Finding the Fourth Proportional to 4,285.46, 6,431.84 and 1,690.22

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Solution

The fourth proportional to 4,285.46, 6,431.84 and 1,690.22 is: 2,536.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.46 : 6,431.84 = 1,690.22 : x
  2. Step 2: Convert to fraction form
    4,285.46/6,431.84 = 1,690.22/x
  3. Step 3: Cross multiply
    4,285.46x = 6,431.84 × 1,690.22
  4. Step 4: Simplify right side
    4,285.46x = 10,871,183.99
  5. Step 5: Solve for x
    x = 10,871,183.99/4,285.46
  6. Step 6: Final answer
    x = 2,536.76

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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.