Home / 7,743.51-11,615.31-1,900.11

Finding the Fourth Proportional to 7,743.51, 11,615.31 and 1,900.11

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Solution

The fourth proportional to 7,743.51, 11,615.31 and 1,900.11 is: 2,850.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.51 : 11,615.31 = 1,900.11 : x
  2. Step 2: Convert to fraction form
    7,743.51/11,615.31 = 1,900.11/x
  3. Step 3: Cross multiply
    7,743.51x = 11,615.31 × 1,900.11
  4. Step 4: Simplify right side
    7,743.51x = 22,070,366.68
  5. Step 5: Solve for x
    x = 22,070,366.68/7,743.51
  6. Step 6: Final answer
    x = 2,850.18

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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.