Home / 5,172.91-7,758.59-1,886.01

Finding the Fourth Proportional to 5,172.91, 7,758.59 and 1,886.01

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Solution

The fourth proportional to 5,172.91, 7,758.59 and 1,886.01 is: 2,828.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.91 : 7,758.59 = 1,886.01 : x
  2. Step 2: Convert to fraction form
    5,172.91/7,758.59 = 1,886.01/x
  3. Step 3: Cross multiply
    5,172.91x = 7,758.59 × 1,886.01
  4. Step 4: Simplify right side
    5,172.91x = 14,632,761.62
  5. Step 5: Solve for x
    x = 14,632,761.62/5,172.91
  6. Step 6: Final answer
    x = 2,828.73

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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.