Home / 5,271.74-7,907.56-2,151.72

Finding the Fourth Proportional to 5,271.74, 7,907.56 and 2,151.72

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Solution

The fourth proportional to 5,271.74, 7,907.56 and 2,151.72 is: 3,227.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.74 : 7,907.56 = 2,151.72 : x
  2. Step 2: Convert to fraction form
    5,271.74/7,907.56 = 2,151.72/x
  3. Step 3: Cross multiply
    5,271.74x = 7,907.56 × 2,151.72
  4. Step 4: Simplify right side
    5,271.74x = 17,014,855.00
  5. Step 5: Solve for x
    x = 17,014,855.00/5,271.74
  6. Step 6: Final answer
    x = 3,227.56

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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.