Home / 1,968.67-2,697.48-1,939.51

Finding the Fourth Proportional to 1,968.67, 2,697.48 and 1,939.51

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Solution

The fourth proportional to 1,968.67, 2,697.48 and 1,939.51 is: 2,657.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.67 : 2,697.48 = 1,939.51 : x
  2. Step 2: Convert to fraction form
    1,968.67/2,697.48 = 1,939.51/x
  3. Step 3: Cross multiply
    1,968.67x = 2,697.48 × 1,939.51
  4. Step 4: Simplify right side
    1,968.67x = 5,231,775.95
  5. Step 5: Solve for x
    x = 5,231,775.95/1,968.67
  6. Step 6: Final answer
    x = 2,657.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.