Home / 2,627.51-3,622.67-1,918.79

Finding the Fourth Proportional to 2,627.51, 3,622.67 and 1,918.79

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Solution

The fourth proportional to 2,627.51, 3,622.67 and 1,918.79 is: 2,645.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,627.51 : 3,622.67 = 1,918.79 : x
  2. Step 2: Convert to fraction form
    2,627.51/3,622.67 = 1,918.79/x
  3. Step 3: Cross multiply
    2,627.51x = 3,622.67 × 1,918.79
  4. Step 4: Simplify right side
    2,627.51x = 6,951,146.84
  5. Step 5: Solve for x
    x = 6,951,146.84/2,627.51
  6. Step 6: Final answer
    x = 2,645.52

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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.