Home / 2,012.78-2,777.49-1,173.35

Finding the Fourth Proportional to 2,012.78, 2,777.49 and 1,173.35

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Solution

The fourth proportional to 2,012.78, 2,777.49 and 1,173.35 is: 1,619.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.78 : 2,777.49 = 1,173.35 : x
  2. Step 2: Convert to fraction form
    2,012.78/2,777.49 = 1,173.35/x
  3. Step 3: Cross multiply
    2,012.78x = 2,777.49 × 1,173.35
  4. Step 4: Simplify right side
    2,012.78x = 3,258,974.84
  5. Step 5: Solve for x
    x = 3,258,974.84/2,012.78
  6. Step 6: Final answer
    x = 1,619.14

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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.