Home / 2,245.95-3,099.42-1,237.77

Finding the Fourth Proportional to 2,245.95, 3,099.42 and 1,237.77

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Solution

The fourth proportional to 2,245.95, 3,099.42 and 1,237.77 is: 1,708.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.95 : 3,099.42 = 1,237.77 : x
  2. Step 2: Convert to fraction form
    2,245.95/3,099.42 = 1,237.77/x
  3. Step 3: Cross multiply
    2,245.95x = 3,099.42 × 1,237.77
  4. Step 4: Simplify right side
    2,245.95x = 3,836,369.09
  5. Step 5: Solve for x
    x = 3,836,369.09/2,245.95
  6. Step 6: Final answer
    x = 1,708.13

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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.