Home / 2,721.34-4,080.66-1,260.16

Finding the Fourth Proportional to 2,721.34, 4,080.66 and 1,260.16

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Solution

The fourth proportional to 2,721.34, 4,080.66 and 1,260.16 is: 1,889.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.34 : 4,080.66 = 1,260.16 : x
  2. Step 2: Convert to fraction form
    2,721.34/4,080.66 = 1,260.16/x
  3. Step 3: Cross multiply
    2,721.34x = 4,080.66 × 1,260.16
  4. Step 4: Simplify right side
    2,721.34x = 5,142,284.51
  5. Step 5: Solve for x
    x = 5,142,284.51/2,721.34
  6. Step 6: Final answer
    x = 1,889.61

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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.