Home / 7,977.35-11,965.80-2,430.45

Finding the Fourth Proportional to 7,977.35, 11,965.80 and 2,430.45

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Solution

The fourth proportional to 7,977.35, 11,965.80 and 2,430.45 is: 3,645.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.35 : 11,965.80 = 2,430.45 : x
  2. Step 2: Convert to fraction form
    7,977.35/11,965.80 = 2,430.45/x
  3. Step 3: Cross multiply
    7,977.35x = 11,965.80 × 2,430.45
  4. Step 4: Simplify right side
    7,977.35x = 29,082,278.61
  5. Step 5: Solve for x
    x = 29,082,278.61/7,977.35
  6. Step 6: Final answer
    x = 3,645.61

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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.