Home / 5,389.03-8,081.12-2,102.05

Finding the Fourth Proportional to 5,389.03, 8,081.12 and 2,102.05

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Solution

The fourth proportional to 5,389.03, 8,081.12 and 2,102.05 is: 3,152.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.03 : 8,081.12 = 2,102.05 : x
  2. Step 2: Convert to fraction form
    5,389.03/8,081.12 = 2,102.05/x
  3. Step 3: Cross multiply
    5,389.03x = 8,081.12 × 2,102.05
  4. Step 4: Simplify right side
    5,389.03x = 16,986,921.83
  5. Step 5: Solve for x
    x = 16,986,921.83/5,389.03
  6. Step 6: Final answer
    x = 3,152.13

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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.