Home / 3,102.13-4,653.40-1,370.75

Finding the Fourth Proportional to 3,102.13, 4,653.40 and 1,370.75

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Solution

The fourth proportional to 3,102.13, 4,653.40 and 1,370.75 is: 2,056.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.13 : 4,653.40 = 1,370.75 : x
  2. Step 2: Convert to fraction form
    3,102.13/4,653.40 = 1,370.75/x
  3. Step 3: Cross multiply
    3,102.13x = 4,653.40 × 1,370.75
  4. Step 4: Simplify right side
    3,102.13x = 6,378,648.05
  5. Step 5: Solve for x
    x = 6,378,648.05/3,102.13
  6. Step 6: Final answer
    x = 2,056.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.