Home / 2,749.85-3,794.69-1,554.87

Finding the Fourth Proportional to 2,749.85, 3,794.69 and 1,554.87

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Solution

The fourth proportional to 2,749.85, 3,794.69 and 1,554.87 is: 2,145.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.85 : 3,794.69 = 1,554.87 : x
  2. Step 2: Convert to fraction form
    2,749.85/3,794.69 = 1,554.87/x
  3. Step 3: Cross multiply
    2,749.85x = 3,794.69 × 1,554.87
  4. Step 4: Simplify right side
    2,749.85x = 5,900,241.87
  5. Step 5: Solve for x
    x = 5,900,241.87/2,749.85
  6. Step 6: Final answer
    x = 2,145.66

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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.