Home / 3,114.85-4,670.55-1,238.84

Finding the Fourth Proportional to 3,114.85, 4,670.55 and 1,238.84

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Solution

The fourth proportional to 3,114.85, 4,670.55 and 1,238.84 is: 1,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.85 : 4,670.55 = 1,238.84 : x
  2. Step 2: Convert to fraction form
    3,114.85/4,670.55 = 1,238.84/x
  3. Step 3: Cross multiply
    3,114.85x = 4,670.55 × 1,238.84
  4. Step 4: Simplify right side
    3,114.85x = 5,786,052.49
  5. Step 5: Solve for x
    x = 5,786,052.49/3,114.85
  6. Step 6: Final answer
    x = 1,857.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.