Home / 2,938.12-4,054.51-1,758.97

Finding the Fourth Proportional to 2,938.12, 4,054.51 and 1,758.97

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Solution

The fourth proportional to 2,938.12, 4,054.51 and 1,758.97 is: 2,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.12 : 4,054.51 = 1,758.97 : x
  2. Step 2: Convert to fraction form
    2,938.12/4,054.51 = 1,758.97/x
  3. Step 3: Cross multiply
    2,938.12x = 4,054.51 × 1,758.97
  4. Step 4: Simplify right side
    2,938.12x = 7,131,736.02
  5. Step 5: Solve for x
    x = 7,131,736.02/2,938.12
  6. Step 6: Final answer
    x = 2,427.31

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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.