Home / 2,518.26-3,778.38-1,130.64

Finding the Fourth Proportional to 2,518.26, 3,778.38 and 1,130.64

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Solution

The fourth proportional to 2,518.26, 3,778.38 and 1,130.64 is: 1,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.26 : 3,778.38 = 1,130.64 : x
  2. Step 2: Convert to fraction form
    2,518.26/3,778.38 = 1,130.64/x
  3. Step 3: Cross multiply
    2,518.26x = 3,778.38 × 1,130.64
  4. Step 4: Simplify right side
    2,518.26x = 4,271,987.56
  5. Step 5: Solve for x
    x = 4,271,987.56/2,518.26
  6. Step 6: Final answer
    x = 1,696.40

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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.