Home / 4,903.85-7,351.63-2,128.43

Finding the Fourth Proportional to 4,903.85, 7,351.63 and 2,128.43

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Solution

The fourth proportional to 4,903.85, 7,351.63 and 2,128.43 is: 3,190.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.85 : 7,351.63 = 2,128.43 : x
  2. Step 2: Convert to fraction form
    4,903.85/7,351.63 = 2,128.43/x
  3. Step 3: Cross multiply
    4,903.85x = 7,351.63 × 2,128.43
  4. Step 4: Simplify right side
    4,903.85x = 15,647,393.08
  5. Step 5: Solve for x
    x = 15,647,393.08/4,903.85
  6. Step 6: Final answer
    x = 3,190.84

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1.5x scale

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.