Home / 5,421.62-8,132.66-2,644.98

Finding the Fourth Proportional to 5,421.62, 8,132.66 and 2,644.98

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Solution

The fourth proportional to 5,421.62, 8,132.66 and 2,644.98 is: 3,967.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.62 : 8,132.66 = 2,644.98 : x
  2. Step 2: Convert to fraction form
    5,421.62/8,132.66 = 2,644.98/x
  3. Step 3: Cross multiply
    5,421.62x = 8,132.66 × 2,644.98
  4. Step 4: Simplify right side
    5,421.62x = 21,510,709.82
  5. Step 5: Solve for x
    x = 21,510,709.82/5,421.62
  6. Step 6: Final answer
    x = 3,967.58

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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.