Home / 6,128.21-9,193.34-4,811.91

Finding the Fourth Proportional to 6,128.21, 9,193.34 and 4,811.91

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Solution

The fourth proportional to 6,128.21, 9,193.34 and 4,811.91 is: 7,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.21 : 9,193.34 = 4,811.91 : x
  2. Step 2: Convert to fraction form
    6,128.21/9,193.34 = 4,811.91/x
  3. Step 3: Cross multiply
    6,128.21x = 9,193.34 × 4,811.91
  4. Step 4: Simplify right side
    6,128.21x = 44,237,468.40
  5. Step 5: Solve for x
    x = 44,237,468.40/6,128.21
  6. Step 6: Final answer
    x = 7,218.66

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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.