Home / 4,421.27-6,631.09-1,788.09

Finding the Fourth Proportional to 4,421.27, 6,631.09 and 1,788.09

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Solution

The fourth proportional to 4,421.27, 6,631.09 and 1,788.09 is: 2,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,421.27 : 6,631.09 = 1,788.09 : x
  2. Step 2: Convert to fraction form
    4,421.27/6,631.09 = 1,788.09/x
  3. Step 3: Cross multiply
    4,421.27x = 6,631.09 × 1,788.09
  4. Step 4: Simplify right side
    4,421.27x = 11,856,981.25
  5. Step 5: Solve for x
    x = 11,856,981.25/4,421.27
  6. Step 6: Final answer
    x = 2,681.80

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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.