Home / 4,000.18-5,520-2,321.66

Finding the Fourth Proportional to 4,000.18, 5,520 and 2,321.66

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Solution

The fourth proportional to 4,000.18, 5,520 and 2,321.66 is: 3,203.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000.18 : 5,520 = 2,321.66 : x
  2. Step 2: Convert to fraction form
    4,000.18/5,520 = 2,321.66/x
  3. Step 3: Cross multiply
    4,000.18x = 5,520 × 2,321.66
  4. Step 4: Simplify right side
    4,000.18x = 12,815,563.20
  5. Step 5: Solve for x
    x = 12,815,563.20/4,000.18
  6. Step 6: Final answer
    x = 3,203.75

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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.