Home / 3,918.16-5,878.59-2,455.57

Finding the Fourth Proportional to 3,918.16, 5,878.59 and 2,455.57

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Solution

The fourth proportional to 3,918.16, 5,878.59 and 2,455.57 is: 3,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.16 : 5,878.59 = 2,455.57 : x
  2. Step 2: Convert to fraction form
    3,918.16/5,878.59 = 2,455.57/x
  3. Step 3: Cross multiply
    3,918.16x = 5,878.59 × 2,455.57
  4. Step 4: Simplify right side
    3,918.16x = 14,435,289.25
  5. Step 5: Solve for x
    x = 14,435,289.25/3,918.16
  6. Step 6: Final answer
    x = 3,684.20

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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.