Home / 3,493.18-5,240.23-1,271.72

Finding the Fourth Proportional to 3,493.18, 5,240.23 and 1,271.72

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Solution

The fourth proportional to 3,493.18, 5,240.23 and 1,271.72 is: 1,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.18 : 5,240.23 = 1,271.72 : x
  2. Step 2: Convert to fraction form
    3,493.18/5,240.23 = 1,271.72/x
  3. Step 3: Cross multiply
    3,493.18x = 5,240.23 × 1,271.72
  4. Step 4: Simplify right side
    3,493.18x = 6,664,102.16
  5. Step 5: Solve for x
    x = 6,664,102.16/3,493.18
  6. Step 6: Final answer
    x = 1,907.75

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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.