Home / 3,136.80-4,706.40-3,087.60

Finding the Fourth Proportional to 3,136.80, 4,706.40 and 3,087.60

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Solution

The fourth proportional to 3,136.80, 4,706.40 and 3,087.60 is: 4,632.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.80 : 4,706.40 = 3,087.60 : x
  2. Step 2: Convert to fraction form
    3,136.80/4,706.40 = 3,087.60/x
  3. Step 3: Cross multiply
    3,136.80x = 4,706.40 × 3,087.60
  4. Step 4: Simplify right side
    3,136.80x = 14,531,480.64
  5. Step 5: Solve for x
    x = 14,531,480.64/3,136.80
  6. Step 6: Final answer
    x = 4,632.58

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1.5x scale

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.