Home / 4,986.11-6,880.86-2,861.07

Finding the Fourth Proportional to 4,986.11, 6,880.86 and 2,861.07

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Solution

The fourth proportional to 4,986.11, 6,880.86 and 2,861.07 is: 3,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.11 : 6,880.86 = 2,861.07 : x
  2. Step 2: Convert to fraction form
    4,986.11/6,880.86 = 2,861.07/x
  3. Step 3: Cross multiply
    4,986.11x = 6,880.86 × 2,861.07
  4. Step 4: Simplify right side
    4,986.11x = 19,686,622.12
  5. Step 5: Solve for x
    x = 19,686,622.12/4,986.11
  6. Step 6: Final answer
    x = 3,948.30

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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.