Home / 2,345.79-3,237.21-1,297.92

Finding the Fourth Proportional to 2,345.79, 3,237.21 and 1,297.92

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Solution

The fourth proportional to 2,345.79, 3,237.21 and 1,297.92 is: 1,791.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.79 : 3,237.21 = 1,297.92 : x
  2. Step 2: Convert to fraction form
    2,345.79/3,237.21 = 1,297.92/x
  3. Step 3: Cross multiply
    2,345.79x = 3,237.21 × 1,297.92
  4. Step 4: Simplify right side
    2,345.79x = 4,201,639.60
  5. Step 5: Solve for x
    x = 4,201,639.60/2,345.79
  6. Step 6: Final answer
    x = 1,791.14

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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.