Home / 1,938.24-2,674.26-1,230.48

Finding the Fourth Proportional to 1,938.24, 2,674.26 and 1,230.48

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Solution

The fourth proportional to 1,938.24, 2,674.26 and 1,230.48 is: 1,697.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.24 : 2,674.26 = 1,230.48 : x
  2. Step 2: Convert to fraction form
    1,938.24/2,674.26 = 1,230.48/x
  3. Step 3: Cross multiply
    1,938.24x = 2,674.26 × 1,230.48
  4. Step 4: Simplify right side
    1,938.24x = 3,290,623.44
  5. Step 5: Solve for x
    x = 3,290,623.44/1,938.24
  6. Step 6: Final answer
    x = 1,697.74

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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.