Home / 3,211.16-4,431.50-1,794.80

Finding the Fourth Proportional to 3,211.16, 4,431.50 and 1,794.80

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Solution

The fourth proportional to 3,211.16, 4,431.50 and 1,794.80 is: 2,476.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.16 : 4,431.50 = 1,794.80 : x
  2. Step 2: Convert to fraction form
    3,211.16/4,431.50 = 1,794.80/x
  3. Step 3: Cross multiply
    3,211.16x = 4,431.50 × 1,794.80
  4. Step 4: Simplify right side
    3,211.16x = 7,953,656.20
  5. Step 5: Solve for x
    x = 7,953,656.20/3,211.16
  6. Step 6: Final answer
    x = 2,476.88

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1.5x scale

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.