Home / 2,273.13-3,136.60-1,278.37

Finding the Fourth Proportional to 2,273.13, 3,136.60 and 1,278.37

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Solution

The fourth proportional to 2,273.13, 3,136.60 and 1,278.37 is: 1,763.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.13 : 3,136.60 = 1,278.37 : x
  2. Step 2: Convert to fraction form
    2,273.13/3,136.60 = 1,278.37/x
  3. Step 3: Cross multiply
    2,273.13x = 3,136.60 × 1,278.37
  4. Step 4: Simplify right side
    2,273.13x = 4,009,728.95
  5. Step 5: Solve for x
    x = 4,009,728.95/2,273.13
  6. Step 6: Final answer
    x = 1,763.97

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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.