Home / 4,379.21-6,564.65-1,455.47

Finding the Fourth Proportional to 4,379.21, 6,564.65 and 1,455.47

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Solution

The fourth proportional to 4,379.21, 6,564.65 and 1,455.47 is: 2,181.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,379.21 : 6,564.65 = 1,455.47 : x
  2. Step 2: Convert to fraction form
    4,379.21/6,564.65 = 1,455.47/x
  3. Step 3: Cross multiply
    4,379.21x = 6,564.65 × 1,455.47
  4. Step 4: Simplify right side
    4,379.21x = 9,554,635.65
  5. Step 5: Solve for x
    x = 9,554,635.65/4,379.21
  6. Step 6: Final answer
    x = 2,181.82

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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.