Home / 7,745.09-10,687.82-4,208.29

Finding the Fourth Proportional to 7,745.09, 10,687.82 and 4,208.29

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Solution

The fourth proportional to 7,745.09, 10,687.82 and 4,208.29 is: 5,807.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.09 : 10,687.82 = 4,208.29 : x
  2. Step 2: Convert to fraction form
    7,745.09/10,687.82 = 4,208.29/x
  3. Step 3: Cross multiply
    7,745.09x = 10,687.82 × 4,208.29
  4. Step 4: Simplify right side
    7,745.09x = 44,977,446.03
  5. Step 5: Solve for x
    x = 44,977,446.03/7,745.09
  6. Step 6: Final answer
    x = 5,807.22

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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.