Home / 4,986.55-6,880.88-2,861.51

Finding the Fourth Proportional to 4,986.55, 6,880.88 and 2,861.51

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Solution

The fourth proportional to 4,986.55, 6,880.88 and 2,861.51 is: 3,948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.55 : 6,880.88 = 2,861.51 : x
  2. Step 2: Convert to fraction form
    4,986.55/6,880.88 = 2,861.51/x
  3. Step 3: Cross multiply
    4,986.55x = 6,880.88 × 2,861.51
  4. Step 4: Simplify right side
    4,986.55x = 19,689,692.62
  5. Step 5: Solve for x
    x = 19,689,692.62/4,986.55
  6. Step 6: Final answer
    x = 3,948.56

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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.