Home / 3,211.53-4,431.83-1,795.13

Finding the Fourth Proportional to 3,211.53, 4,431.83 and 1,795.13

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Solution

The fourth proportional to 3,211.53, 4,431.83 and 1,795.13 is: 2,477.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.53 : 4,431.83 = 1,795.13 : x
  2. Step 2: Convert to fraction form
    3,211.53/4,431.83 = 1,795.13/x
  3. Step 3: Cross multiply
    3,211.53x = 4,431.83 × 1,795.13
  4. Step 4: Simplify right side
    3,211.53x = 7,955,679.85
  5. Step 5: Solve for x
    x = 7,955,679.85/3,211.53
  6. Step 6: Final answer
    x = 2,477.22

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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.