Home / 3,105.56-4,653.80-1,440.19

Finding the Fourth Proportional to 3,105.56, 4,653.80 and 1,440.19

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Solution

The fourth proportional to 3,105.56, 4,653.80 and 1,440.19 is: 2,158.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.56 : 4,653.80 = 1,440.19 : x
  2. Step 2: Convert to fraction form
    3,105.56/4,653.80 = 1,440.19/x
  3. Step 3: Cross multiply
    3,105.56x = 4,653.80 × 1,440.19
  4. Step 4: Simplify right side
    3,105.56x = 6,702,348.19
  5. Step 5: Solve for x
    x = 6,702,348.19/3,105.56
  6. Step 6: Final answer
    x = 2,158.18

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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.