Home / 2,653.08-3,661.32-1,721.56

Finding the Fourth Proportional to 2,653.08, 3,661.32 and 1,721.56

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Solution

The fourth proportional to 2,653.08, 3,661.32 and 1,721.56 is: 2,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.08 : 3,661.32 = 1,721.56 : x
  2. Step 2: Convert to fraction form
    2,653.08/3,661.32 = 1,721.56/x
  3. Step 3: Cross multiply
    2,653.08x = 3,661.32 × 1,721.56
  4. Step 4: Simplify right side
    2,653.08x = 6,303,182.06
  5. Step 5: Solve for x
    x = 6,303,182.06/2,653.08
  6. Step 6: Final answer
    x = 2,375.80

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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.