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Finding the Fourth Proportional to 4,803.85, 6,629.31 and 2,679.57

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Solution

The fourth proportional to 4,803.85, 6,629.31 and 2,679.57 is: 3,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,803.85 : 6,629.31 = 2,679.57 : x
  2. Step 2: Convert to fraction form
    4,803.85/6,629.31 = 2,679.57/x
  3. Step 3: Cross multiply
    4,803.85x = 6,629.31 × 2,679.57
  4. Step 4: Simplify right side
    4,803.85x = 17,763,700.20
  5. Step 5: Solve for x
    x = 17,763,700.20/4,803.85
  6. Step 6: Final answer
    x = 3,697.80

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1.5x scale

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.