Home / 3,136.09-4,701.70-1,287.67

Finding the Fourth Proportional to 3,136.09, 4,701.70 and 1,287.67

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Solution

The fourth proportional to 3,136.09, 4,701.70 and 1,287.67 is: 1,930.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.09 : 4,701.70 = 1,287.67 : x
  2. Step 2: Convert to fraction form
    3,136.09/4,701.70 = 1,287.67/x
  3. Step 3: Cross multiply
    3,136.09x = 4,701.70 × 1,287.67
  4. Step 4: Simplify right side
    3,136.09x = 6,054,238.04
  5. Step 5: Solve for x
    x = 6,054,238.04/3,136.09
  6. Step 6: Final answer
    x = 1,930.51

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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.