Home / 5,147.35-7,721.93-1,865.03

Finding the Fourth Proportional to 5,147.35, 7,721.93 and 1,865.03

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Solution

The fourth proportional to 5,147.35, 7,721.93 and 1,865.03 is: 2,797.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.35 : 7,721.93 = 1,865.03 : x
  2. Step 2: Convert to fraction form
    5,147.35/7,721.93 = 1,865.03/x
  3. Step 3: Cross multiply
    5,147.35x = 7,721.93 × 1,865.03
  4. Step 4: Simplify right side
    5,147.35x = 14,401,597.16
  5. Step 5: Solve for x
    x = 14,401,597.16/5,147.35
  6. Step 6: Final answer
    x = 2,797.87

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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.