Home / 2,853.26-3,938.63-1,790.74

Finding the Fourth Proportional to 2,853.26, 3,938.63 and 1,790.74

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Solution

The fourth proportional to 2,853.26, 3,938.63 and 1,790.74 is: 2,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.26 : 3,938.63 = 1,790.74 : x
  2. Step 2: Convert to fraction form
    2,853.26/3,938.63 = 1,790.74/x
  3. Step 3: Cross multiply
    2,853.26x = 3,938.63 × 1,790.74
  4. Step 4: Simplify right side
    2,853.26x = 7,053,033.64
  5. Step 5: Solve for x
    x = 7,053,033.64/2,853.26
  6. Step 6: Final answer
    x = 2,471.93

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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.