Home / 2,047.79-3,072.40-1,122.17

Finding the Fourth Proportional to 2,047.79, 3,072.40 and 1,122.17

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Solution

The fourth proportional to 2,047.79, 3,072.40 and 1,122.17 is: 1,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,047.79 : 3,072.40 = 1,122.17 : x
  2. Step 2: Convert to fraction form
    2,047.79/3,072.40 = 1,122.17/x
  3. Step 3: Cross multiply
    2,047.79x = 3,072.40 × 1,122.17
  4. Step 4: Simplify right side
    2,047.79x = 3,447,736.94
  5. Step 5: Solve for x
    x = 3,447,736.94/2,047.79
  6. Step 6: Final answer
    x = 1,683.64

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1.5x scale

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.