Home / 4,120.64-5,686-2,352.32

Finding the Fourth Proportional to 4,120.64, 5,686 and 2,352.32

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Solution

The fourth proportional to 4,120.64, 5,686 and 2,352.32 is: 3,245.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.64 : 5,686 = 2,352.32 : x
  2. Step 2: Convert to fraction form
    4,120.64/5,686 = 2,352.32/x
  3. Step 3: Cross multiply
    4,120.64x = 5,686 × 2,352.32
  4. Step 4: Simplify right side
    4,120.64x = 13,375,291.52
  5. Step 5: Solve for x
    x = 13,375,291.52/4,120.64
  6. Step 6: Final answer
    x = 3,245.93

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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.