Home / 3,175.23-4,381.83-1,777.98

Finding the Fourth Proportional to 3,175.23, 4,381.83 and 1,777.98

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Solution

The fourth proportional to 3,175.23, 4,381.83 and 1,777.98 is: 2,453.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.23 : 4,381.83 = 1,777.98 : x
  2. Step 2: Convert to fraction form
    3,175.23/4,381.83 = 1,777.98/x
  3. Step 3: Cross multiply
    3,175.23x = 4,381.83 × 1,777.98
  4. Step 4: Simplify right side
    3,175.23x = 7,790,806.10
  5. Step 5: Solve for x
    x = 7,790,806.10/3,175.23
  6. Step 6: Final answer
    x = 2,453.62

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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.