Home / 5,222.42-7,836.70-1,937.80

Finding the Fourth Proportional to 5,222.42, 7,836.70 and 1,937.80

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Solution

The fourth proportional to 5,222.42, 7,836.70 and 1,937.80 is: 2,907.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.42 : 7,836.70 = 1,937.80 : x
  2. Step 2: Convert to fraction form
    5,222.42/7,836.70 = 1,937.80/x
  3. Step 3: Cross multiply
    5,222.42x = 7,836.70 × 1,937.80
  4. Step 4: Simplify right side
    5,222.42x = 15,185,957.26
  5. Step 5: Solve for x
    x = 15,185,957.26/5,222.42
  6. Step 6: Final answer
    x = 2,907.84

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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.