Home / 3,085.85-4,628.67-1,236.47

Finding the Fourth Proportional to 3,085.85, 4,628.67 and 1,236.47

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Solution

The fourth proportional to 3,085.85, 4,628.67 and 1,236.47 is: 1,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.85 : 4,628.67 = 1,236.47 : x
  2. Step 2: Convert to fraction form
    3,085.85/4,628.67 = 1,236.47/x
  3. Step 3: Cross multiply
    3,085.85x = 4,628.67 × 1,236.47
  4. Step 4: Simplify right side
    3,085.85x = 5,723,183.81
  5. Step 5: Solve for x
    x = 5,723,183.81/3,085.85
  6. Step 6: Final answer
    x = 1,854.66

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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.