Home / 5,212.55-7,816.40-3,021.91

Finding the Fourth Proportional to 5,212.55, 7,816.40 and 3,021.91

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Solution

The fourth proportional to 5,212.55, 7,816.40 and 3,021.91 is: 4,531.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.55 : 7,816.40 = 3,021.91 : x
  2. Step 2: Convert to fraction form
    5,212.55/7,816.40 = 3,021.91/x
  3. Step 3: Cross multiply
    5,212.55x = 7,816.40 × 3,021.91
  4. Step 4: Simplify right side
    5,212.55x = 23,620,434.01
  5. Step 5: Solve for x
    x = 23,620,434.01/5,212.55
  6. Step 6: Final answer
    x = 4,531.45

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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.