Home / 4,989.42-6,885.26-2,751.28

Finding the Fourth Proportional to 4,989.42, 6,885.26 and 2,751.28

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Solution

The fourth proportional to 4,989.42, 6,885.26 and 2,751.28 is: 3,796.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.42 : 6,885.26 = 2,751.28 : x
  2. Step 2: Convert to fraction form
    4,989.42/6,885.26 = 2,751.28/x
  3. Step 3: Cross multiply
    4,989.42x = 6,885.26 × 2,751.28
  4. Step 4: Simplify right side
    4,989.42x = 18,943,278.13
  5. Step 5: Solve for x
    x = 18,943,278.13/4,989.42
  6. Step 6: Final answer
    x = 3,796.69

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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.