Home / 5,268.30-7,271.21-3,143.98

Finding the Fourth Proportional to 5,268.30, 7,271.21 and 3,143.98

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Solution

The fourth proportional to 5,268.30, 7,271.21 and 3,143.98 is: 4,339.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.30 : 7,271.21 = 3,143.98 : x
  2. Step 2: Convert to fraction form
    5,268.30/7,271.21 = 3,143.98/x
  3. Step 3: Cross multiply
    5,268.30x = 7,271.21 × 3,143.98
  4. Step 4: Simplify right side
    5,268.30x = 22,860,538.82
  5. Step 5: Solve for x
    x = 22,860,538.82/5,268.30
  6. Step 6: Final answer
    x = 4,339.26

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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.