Home / 4,540.60-6,811.16-1,421.04

Finding the Fourth Proportional to 4,540.60, 6,811.16 and 1,421.04

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Solution

The fourth proportional to 4,540.60, 6,811.16 and 1,421.04 is: 2,131.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,540.60 : 6,811.16 = 1,421.04 : x
  2. Step 2: Convert to fraction form
    4,540.60/6,811.16 = 1,421.04/x
  3. Step 3: Cross multiply
    4,540.60x = 6,811.16 × 1,421.04
  4. Step 4: Simplify right side
    4,540.60x = 9,678,930.81
  5. Step 5: Solve for x
    x = 9,678,930.81/4,540.60
  6. Step 6: Final answer
    x = 2,131.64

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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.