Home / 7,438.03-11,155.84-2,171.80

Finding the Fourth Proportional to 7,438.03, 11,155.84 and 2,171.80

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Solution

The fourth proportional to 7,438.03, 11,155.84 and 2,171.80 is: 3,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.03 : 11,155.84 = 2,171.80 : x
  2. Step 2: Convert to fraction form
    7,438.03/11,155.84 = 2,171.80/x
  3. Step 3: Cross multiply
    7,438.03x = 11,155.84 × 2,171.80
  4. Step 4: Simplify right side
    7,438.03x = 24,228,230.45
  5. Step 5: Solve for x
    x = 24,228,230.45/7,438.03
  6. Step 6: Final answer
    x = 3,257.35

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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.