Home / 3,290.26-4,538.40-1,963.07

Finding the Fourth Proportional to 3,290.26, 4,538.40 and 1,963.07

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Solution

The fourth proportional to 3,290.26, 4,538.40 and 1,963.07 is: 2,707.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.26 : 4,538.40 = 1,963.07 : x
  2. Step 2: Convert to fraction form
    3,290.26/4,538.40 = 1,963.07/x
  3. Step 3: Cross multiply
    3,290.26x = 4,538.40 × 1,963.07
  4. Step 4: Simplify right side
    3,290.26x = 8,909,187.07
  5. Step 5: Solve for x
    x = 8,909,187.07/3,290.26
  6. Step 6: Final answer
    x = 2,707.75

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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.