Home / 5,271.03-7,270.74-3,145.14

Finding the Fourth Proportional to 5,271.03, 7,270.74 and 3,145.14

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Solution

The fourth proportional to 5,271.03, 7,270.74 and 3,145.14 is: 4,338.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.03 : 7,270.74 = 3,145.14 : x
  2. Step 2: Convert to fraction form
    5,271.03/7,270.74 = 3,145.14/x
  3. Step 3: Cross multiply
    5,271.03x = 7,270.74 × 3,145.14
  4. Step 4: Simplify right side
    5,271.03x = 22,867,495.20
  5. Step 5: Solve for x
    x = 22,867,495.20/5,271.03
  6. Step 6: Final answer
    x = 4,338.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.