Home / 5,521.13-8,281.88-2,190.01

Finding the Fourth Proportional to 5,521.13, 8,281.88 and 2,190.01

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Solution

The fourth proportional to 5,521.13, 8,281.88 and 2,190.01 is: 3,285.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.13 : 8,281.88 = 2,190.01 : x
  2. Step 2: Convert to fraction form
    5,521.13/8,281.88 = 2,190.01/x
  3. Step 3: Cross multiply
    5,521.13x = 8,281.88 × 2,190.01
  4. Step 4: Simplify right side
    5,521.13x = 18,137,427.72
  5. Step 5: Solve for x
    x = 18,137,427.72/5,521.13
  6. Step 6: Final answer
    x = 3,285.09

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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.