Home / 1,939.55-2,673.47-1,486.35

Finding the Fourth Proportional to 1,939.55, 2,673.47 and 1,486.35

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Solution

The fourth proportional to 1,939.55, 2,673.47 and 1,486.35 is: 2,048.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.55 : 2,673.47 = 1,486.35 : x
  2. Step 2: Convert to fraction form
    1,939.55/2,673.47 = 1,486.35/x
  3. Step 3: Cross multiply
    1,939.55x = 2,673.47 × 1,486.35
  4. Step 4: Simplify right side
    1,939.55x = 3,973,704.70
  5. Step 5: Solve for x
    x = 3,973,704.70/1,939.55
  6. Step 6: Final answer
    x = 2,048.78

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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.