Home / 2,273.44-3,136.48-1,388.80

Finding the Fourth Proportional to 2,273.44, 3,136.48 and 1,388.80

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Solution

The fourth proportional to 2,273.44, 3,136.48 and 1,388.80 is: 1,916.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.44 : 3,136.48 = 1,388.80 : x
  2. Step 2: Convert to fraction form
    2,273.44/3,136.48 = 1,388.80/x
  3. Step 3: Cross multiply
    2,273.44x = 3,136.48 × 1,388.80
  4. Step 4: Simplify right side
    2,273.44x = 4,355,943.42
  5. Step 5: Solve for x
    x = 4,355,943.42/2,273.44
  6. Step 6: Final answer
    x = 1,916.01

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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.