Home / 5,400.72-8,097.84-2,113.20

Finding the Fourth Proportional to 5,400.72, 8,097.84 and 2,113.20

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Solution

The fourth proportional to 5,400.72, 8,097.84 and 2,113.20 is: 3,168.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400.72 : 8,097.84 = 2,113.20 : x
  2. Step 2: Convert to fraction form
    5,400.72/8,097.84 = 2,113.20/x
  3. Step 3: Cross multiply
    5,400.72x = 8,097.84 × 2,113.20
  4. Step 4: Simplify right side
    5,400.72x = 17,112,355.49
  5. Step 5: Solve for x
    x = 17,112,355.49/5,400.72
  6. Step 6: Final answer
    x = 3,168.53

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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.