Home / 2,234.39-3,083.16-1,290.23

Finding the Fourth Proportional to 2,234.39, 3,083.16 and 1,290.23

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Solution

The fourth proportional to 2,234.39, 3,083.16 and 1,290.23 is: 1,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,234.39 : 3,083.16 = 1,290.23 : x
  2. Step 2: Convert to fraction form
    2,234.39/3,083.16 = 1,290.23/x
  3. Step 3: Cross multiply
    2,234.39x = 3,083.16 × 1,290.23
  4. Step 4: Simplify right side
    2,234.39x = 3,977,986.51
  5. Step 5: Solve for x
    x = 3,977,986.51/2,234.39
  6. Step 6: Final answer
    x = 1,780.35

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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.