Home / 5,388.90-8,087.10-2,102.01

Finding the Fourth Proportional to 5,388.90, 8,087.10 and 2,102.01

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Solution

The fourth proportional to 5,388.90, 8,087.10 and 2,102.01 is: 3,154.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.90 : 8,087.10 = 2,102.01 : x
  2. Step 2: Convert to fraction form
    5,388.90/8,087.10 = 2,102.01/x
  3. Step 3: Cross multiply
    5,388.90x = 8,087.10 × 2,102.01
  4. Step 4: Simplify right side
    5,388.90x = 16,999,165.07
  5. Step 5: Solve for x
    x = 16,999,165.07/5,388.90
  6. Step 6: Final answer
    x = 3,154.48

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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.