Home / 4,989.69-6,885.74-2,751.57

Finding the Fourth Proportional to 4,989.69, 6,885.74 and 2,751.57

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Solution

The fourth proportional to 4,989.69, 6,885.74 and 2,751.57 is: 3,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.69 : 6,885.74 = 2,751.57 : x
  2. Step 2: Convert to fraction form
    4,989.69/6,885.74 = 2,751.57/x
  3. Step 3: Cross multiply
    4,989.69x = 6,885.74 × 2,751.57
  4. Step 4: Simplify right side
    4,989.69x = 18,946,581.85
  5. Step 5: Solve for x
    x = 18,946,581.85/4,989.69
  6. Step 6: Final answer
    x = 3,797.15

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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.