Home / 5,451.88-8,172.70-2,529.32

Finding the Fourth Proportional to 5,451.88, 8,172.70 and 2,529.32

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Solution

The fourth proportional to 5,451.88, 8,172.70 and 2,529.32 is: 3,791.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.88 : 8,172.70 = 2,529.32 : x
  2. Step 2: Convert to fraction form
    5,451.88/8,172.70 = 2,529.32/x
  3. Step 3: Cross multiply
    5,451.88x = 8,172.70 × 2,529.32
  4. Step 4: Simplify right side
    5,451.88x = 20,671,373.56
  5. Step 5: Solve for x
    x = 20,671,373.56/5,451.88
  6. Step 6: Final answer
    x = 3,791.60

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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.