Home / 1,984.51-2,738.57-1,100.30

Finding the Fourth Proportional to 1,984.51, 2,738.57 and 1,100.30

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Solution

The fourth proportional to 1,984.51, 2,738.57 and 1,100.30 is: 1,518.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.51 : 2,738.57 = 1,100.30 : x
  2. Step 2: Convert to fraction form
    1,984.51/2,738.57 = 1,100.30/x
  3. Step 3: Cross multiply
    1,984.51x = 2,738.57 × 1,100.30
  4. Step 4: Simplify right side
    1,984.51x = 3,013,258.17
  5. Step 5: Solve for x
    x = 3,013,258.17/1,984.51
  6. Step 6: Final answer
    x = 1,518.39

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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.