Home / 3,071.06-4,236.31-1,891.30

Finding the Fourth Proportional to 3,071.06, 4,236.31 and 1,891.30

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Solution

The fourth proportional to 3,071.06, 4,236.31 and 1,891.30 is: 2,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.06 : 4,236.31 = 1,891.30 : x
  2. Step 2: Convert to fraction form
    3,071.06/4,236.31 = 1,891.30/x
  3. Step 3: Cross multiply
    3,071.06x = 4,236.31 × 1,891.30
  4. Step 4: Simplify right side
    3,071.06x = 8,012,133.10
  5. Step 5: Solve for x
    x = 8,012,133.10/3,071.06
  6. Step 6: Final answer
    x = 2,608.91

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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.