Home / 6,111.96-8,438.09-4,431.75

Finding the Fourth Proportional to 6,111.96, 8,438.09 and 4,431.75

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Solution

The fourth proportional to 6,111.96, 8,438.09 and 4,431.75 is: 6,118.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,111.96 : 8,438.09 = 4,431.75 : x
  2. Step 2: Convert to fraction form
    6,111.96/8,438.09 = 4,431.75/x
  3. Step 3: Cross multiply
    6,111.96x = 8,438.09 × 4,431.75
  4. Step 4: Simplify right side
    6,111.96x = 37,395,483.20
  5. Step 5: Solve for x
    x = 37,395,483.20/6,111.96
  6. Step 6: Final answer
    x = 6,118.41

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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.