Home / 2,345.24-3,236.34-1,297.28

Finding the Fourth Proportional to 2,345.24, 3,236.34 and 1,297.28

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Solution

The fourth proportional to 2,345.24, 3,236.34 and 1,297.28 is: 1,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.24 : 3,236.34 = 1,297.28 : x
  2. Step 2: Convert to fraction form
    2,345.24/3,236.34 = 1,297.28/x
  3. Step 3: Cross multiply
    2,345.24x = 3,236.34 × 1,297.28
  4. Step 4: Simplify right side
    2,345.24x = 4,198,439.16
  5. Step 5: Solve for x
    x = 4,198,439.16/2,345.24
  6. Step 6: Final answer
    x = 1,790.20

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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.