Home / 4,051.36-6,078.32-1,317.28

Finding the Fourth Proportional to 4,051.36, 6,078.32 and 1,317.28

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Solution

The fourth proportional to 4,051.36, 6,078.32 and 1,317.28 is: 1,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,051.36 : 6,078.32 = 1,317.28 : x
  2. Step 2: Convert to fraction form
    4,051.36/6,078.32 = 1,317.28/x
  3. Step 3: Cross multiply
    4,051.36x = 6,078.32 × 1,317.28
  4. Step 4: Simplify right side
    4,051.36x = 8,006,849.37
  5. Step 5: Solve for x
    x = 8,006,849.37/4,051.36
  6. Step 6: Final answer
    x = 1,976.34

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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.