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Finding the Fourth Proportional to 3,071.65, 4,238.16 and 1,745.23

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Solution

The fourth proportional to 3,071.65, 4,238.16 and 1,745.23 is: 2,408.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.65 : 4,238.16 = 1,745.23 : x
  2. Step 2: Convert to fraction form
    3,071.65/4,238.16 = 1,745.23/x
  3. Step 3: Cross multiply
    3,071.65x = 4,238.16 × 1,745.23
  4. Step 4: Simplify right side
    3,071.65x = 7,396,563.98
  5. Step 5: Solve for x
    x = 7,396,563.98/3,071.65
  6. Step 6: Final answer
    x = 2,408.01

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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.