Home / 2,345.82-3,237.20-1,297.90

Finding the Fourth Proportional to 2,345.82, 3,237.20 and 1,297.90

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Solution

The fourth proportional to 2,345.82, 3,237.20 and 1,297.90 is: 1,791.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.82 : 3,237.20 = 1,297.90 : x
  2. Step 2: Convert to fraction form
    2,345.82/3,237.20 = 1,297.90/x
  3. Step 3: Cross multiply
    2,345.82x = 3,237.20 × 1,297.90
  4. Step 4: Simplify right side
    2,345.82x = 4,201,561.88
  5. Step 5: Solve for x
    x = 4,201,561.88/2,345.82
  6. Step 6: Final answer
    x = 1,791.08

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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.