Home / 2,345.49-3,236.94-1,297.65

Finding the Fourth Proportional to 2,345.49, 3,236.94 and 1,297.65

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Solution

The fourth proportional to 2,345.49, 3,236.94 and 1,297.65 is: 1,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.49 : 3,236.94 = 1,297.65 : x
  2. Step 2: Convert to fraction form
    2,345.49/3,236.94 = 1,297.65/x
  3. Step 3: Cross multiply
    2,345.49x = 3,236.94 × 1,297.65
  4. Step 4: Simplify right side
    2,345.49x = 4,200,415.19
  5. Step 5: Solve for x
    x = 4,200,415.19/2,345.49
  6. Step 6: Final answer
    x = 1,790.85

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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.