Home / 5,421.44-8,126.40-2,134.08

Finding the Fourth Proportional to 5,421.44, 8,126.40 and 2,134.08

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Solution

The fourth proportional to 5,421.44, 8,126.40 and 2,134.08 is: 3,198.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.44 : 8,126.40 = 2,134.08 : x
  2. Step 2: Convert to fraction form
    5,421.44/8,126.40 = 2,134.08/x
  3. Step 3: Cross multiply
    5,421.44x = 8,126.40 × 2,134.08
  4. Step 4: Simplify right side
    5,421.44x = 17,342,387.71
  5. Step 5: Solve for x
    x = 17,342,387.71/5,421.44
  6. Step 6: Final answer
    x = 3,198.85

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1.5x scale

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.