Home / 5,811.30-8,019.75-3,421.44

Finding the Fourth Proportional to 5,811.30, 8,019.75 and 3,421.44

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Solution

The fourth proportional to 5,811.30, 8,019.75 and 3,421.44 is: 4,721.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.30 : 8,019.75 = 3,421.44 : x
  2. Step 2: Convert to fraction form
    5,811.30/8,019.75 = 3,421.44/x
  3. Step 3: Cross multiply
    5,811.30x = 8,019.75 × 3,421.44
  4. Step 4: Simplify right side
    5,811.30x = 27,439,093.44
  5. Step 5: Solve for x
    x = 27,439,093.44/5,811.30
  6. Step 6: Final answer
    x = 4,721.68

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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.