Home / 6,506.80-9,758.40-2,611.60

Finding the Fourth Proportional to 6,506.80, 9,758.40 and 2,611.60

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Solution

The fourth proportional to 6,506.80, 9,758.40 and 2,611.60 is: 3,916.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,506.80 : 9,758.40 = 2,611.60 : x
  2. Step 2: Convert to fraction form
    6,506.80/9,758.40 = 2,611.60/x
  3. Step 3: Cross multiply
    6,506.80x = 9,758.40 × 2,611.60
  4. Step 4: Simplify right side
    6,506.80x = 25,485,037.44
  5. Step 5: Solve for x
    x = 25,485,037.44/6,506.80
  6. Step 6: Final answer
    x = 3,916.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.