Home / 3,211.29-4,431.30-1,794.80

Finding the Fourth Proportional to 3,211.29, 4,431.30 and 1,794.80

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Solution

The fourth proportional to 3,211.29, 4,431.30 and 1,794.80 is: 2,476.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.29 : 4,431.30 = 1,794.80 : x
  2. Step 2: Convert to fraction form
    3,211.29/4,431.30 = 1,794.80/x
  3. Step 3: Cross multiply
    3,211.29x = 4,431.30 × 1,794.80
  4. Step 4: Simplify right side
    3,211.29x = 7,953,275.08
  5. Step 5: Solve for x
    x = 7,953,275.08/3,211.29
  6. Step 6: Final answer
    x = 2,476.66

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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.