Home / 7,909.34-11,858.49-4,790.12

Finding the Fourth Proportional to 7,909.34, 11,858.49 and 4,790.12

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Solution

The fourth proportional to 7,909.34, 11,858.49 and 4,790.12 is: 7,181.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.34 : 11,858.49 = 4,790.12 : x
  2. Step 2: Convert to fraction form
    7,909.34/11,858.49 = 4,790.12/x
  3. Step 3: Cross multiply
    7,909.34x = 11,858.49 × 4,790.12
  4. Step 4: Simplify right side
    7,909.34x = 56,803,530.83
  5. Step 5: Solve for x
    x = 56,803,530.83/7,909.34
  6. Step 6: Final answer
    x = 7,181.83

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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.