Home / 2,746.32-4,120.44-1,285.64

Finding the Fourth Proportional to 2,746.32, 4,120.44 and 1,285.64

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Solution

The fourth proportional to 2,746.32, 4,120.44 and 1,285.64 is: 1,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746.32 : 4,120.44 = 1,285.64 : x
  2. Step 2: Convert to fraction form
    2,746.32/4,120.44 = 1,285.64/x
  3. Step 3: Cross multiply
    2,746.32x = 4,120.44 × 1,285.64
  4. Step 4: Simplify right side
    2,746.32x = 5,297,402.48
  5. Step 5: Solve for x
    x = 5,297,402.48/2,746.32
  6. Step 6: Final answer
    x = 1,928.91

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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.