Home / 2,245.29-3,097.78-1,360.77

Finding the Fourth Proportional to 2,245.29, 3,097.78 and 1,360.77

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Solution

The fourth proportional to 2,245.29, 3,097.78 and 1,360.77 is: 1,877.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.29 : 3,097.78 = 1,360.77 : x
  2. Step 2: Convert to fraction form
    2,245.29/3,097.78 = 1,360.77/x
  3. Step 3: Cross multiply
    2,245.29x = 3,097.78 × 1,360.77
  4. Step 4: Simplify right side
    2,245.29x = 4,215,366.09
  5. Step 5: Solve for x
    x = 4,215,366.09/2,245.29
  6. Step 6: Final answer
    x = 1,877.43

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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.