Home / 5,629.42-7,768.90-3,391.98

Finding the Fourth Proportional to 5,629.42, 7,768.90 and 3,391.98

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Solution

The fourth proportional to 5,629.42, 7,768.90 and 3,391.98 is: 4,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.42 : 7,768.90 = 3,391.98 : x
  2. Step 2: Convert to fraction form
    5,629.42/7,768.90 = 3,391.98/x
  3. Step 3: Cross multiply
    5,629.42x = 7,768.90 × 3,391.98
  4. Step 4: Simplify right side
    5,629.42x = 26,351,953.42
  5. Step 5: Solve for x
    x = 26,351,953.42/5,629.42
  6. Step 6: Final answer
    x = 4,681.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.