Home / 2,136.68-2,949.63-1,351.07

Finding the Fourth Proportional to 2,136.68, 2,949.63 and 1,351.07

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Solution

The fourth proportional to 2,136.68, 2,949.63 and 1,351.07 is: 1,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.68 : 2,949.63 = 1,351.07 : x
  2. Step 2: Convert to fraction form
    2,136.68/2,949.63 = 1,351.07/x
  3. Step 3: Cross multiply
    2,136.68x = 2,949.63 × 1,351.07
  4. Step 4: Simplify right side
    2,136.68x = 3,985,156.60
  5. Step 5: Solve for x
    x = 3,985,156.60/2,136.68
  6. Step 6: Final answer
    x = 1,865.12

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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.