Home / 7,236.21-9,986.36-4,049.31

Finding the Fourth Proportional to 7,236.21, 9,986.36 and 4,049.31

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Solution

The fourth proportional to 7,236.21, 9,986.36 and 4,049.31 is: 5,588.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236.21 : 9,986.36 = 4,049.31 : x
  2. Step 2: Convert to fraction form
    7,236.21/9,986.36 = 4,049.31/x
  3. Step 3: Cross multiply
    7,236.21x = 9,986.36 × 4,049.31
  4. Step 4: Simplify right side
    7,236.21x = 40,437,847.17
  5. Step 5: Solve for x
    x = 40,437,847.17/7,236.21
  6. Step 6: Final answer
    x = 5,588.26

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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.