Home / 3,315.26-4,962.72-2,078.36

Finding the Fourth Proportional to 3,315.26, 4,962.72 and 2,078.36

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Solution

The fourth proportional to 3,315.26, 4,962.72 and 2,078.36 is: 3,111.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.26 : 4,962.72 = 2,078.36 : x
  2. Step 2: Convert to fraction form
    3,315.26/4,962.72 = 2,078.36/x
  3. Step 3: Cross multiply
    3,315.26x = 4,962.72 × 2,078.36
  4. Step 4: Simplify right side
    3,315.26x = 10,314,318.74
  5. Step 5: Solve for x
    x = 10,314,318.74/3,315.26
  6. Step 6: Final answer
    x = 3,111.16

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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.