Home / 5,622.14-7,820.54-5,515.22

Finding the Fourth Proportional to 5,622.14, 7,820.54 and 5,515.22

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Solution

The fourth proportional to 5,622.14, 7,820.54 and 5,515.22 is: 7,671.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.14 : 7,820.54 = 5,515.22 : x
  2. Step 2: Convert to fraction form
    5,622.14/7,820.54 = 5,515.22/x
  3. Step 3: Cross multiply
    5,622.14x = 7,820.54 × 5,515.22
  4. Step 4: Simplify right side
    5,622.14x = 43,131,998.62
  5. Step 5: Solve for x
    x = 43,131,998.62/5,622.14
  6. Step 6: Final answer
    x = 7,671.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.