Home / 5,625.81-8,438.72-2,162.25

Finding the Fourth Proportional to 5,625.81, 8,438.72 and 2,162.25

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Solution

The fourth proportional to 5,625.81, 8,438.72 and 2,162.25 is: 3,243.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,625.81 : 8,438.72 = 2,162.25 : x
  2. Step 2: Convert to fraction form
    5,625.81/8,438.72 = 2,162.25/x
  3. Step 3: Cross multiply
    5,625.81x = 8,438.72 × 2,162.25
  4. Step 4: Simplify right side
    5,625.81x = 18,246,611.51
  5. Step 5: Solve for x
    x = 18,246,611.51/5,625.81
  6. Step 6: Final answer
    x = 3,243.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.