Home / 7,115.72-10,668.98-2,958.59

Finding the Fourth Proportional to 7,115.72, 10,668.98 and 2,958.59

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Solution

The fourth proportional to 7,115.72, 10,668.98 and 2,958.59 is: 4,435.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.72 : 10,668.98 = 2,958.59 : x
  2. Step 2: Convert to fraction form
    7,115.72/10,668.98 = 2,958.59/x
  3. Step 3: Cross multiply
    7,115.72x = 10,668.98 × 2,958.59
  4. Step 4: Simplify right side
    7,115.72x = 31,565,171.61
  5. Step 5: Solve for x
    x = 31,565,171.61/7,115.72
  6. Step 6: Final answer
    x = 4,435.98

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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.