Home / 5,400.84-8,102.57-2,279.16

Finding the Fourth Proportional to 5,400.84, 8,102.57 and 2,279.16

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Solution

The fourth proportional to 5,400.84, 8,102.57 and 2,279.16 is: 3,419.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400.84 : 8,102.57 = 2,279.16 : x
  2. Step 2: Convert to fraction form
    5,400.84/8,102.57 = 2,279.16/x
  3. Step 3: Cross multiply
    5,400.84x = 8,102.57 × 2,279.16
  4. Step 4: Simplify right side
    5,400.84x = 18,467,042.05
  5. Step 5: Solve for x
    x = 18,467,042.05/5,400.84
  6. Step 6: Final answer
    x = 3,419.29

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1.5x scale

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.