Home / 3,118.44-4,303.74-1,721.64

Finding the Fourth Proportional to 3,118.44, 4,303.74 and 1,721.64

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Solution

The fourth proportional to 3,118.44, 4,303.74 and 1,721.64 is: 2,376.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.44 : 4,303.74 = 1,721.64 : x
  2. Step 2: Convert to fraction form
    3,118.44/4,303.74 = 1,721.64/x
  3. Step 3: Cross multiply
    3,118.44x = 4,303.74 × 1,721.64
  4. Step 4: Simplify right side
    3,118.44x = 7,409,490.93
  5. Step 5: Solve for x
    x = 7,409,490.93/3,118.44
  6. Step 6: Final answer
    x = 2,376.02

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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.