Home / 7,720.58-10,654.43-4,183.79

Finding the Fourth Proportional to 7,720.58, 10,654.43 and 4,183.79

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Solution

The fourth proportional to 7,720.58, 10,654.43 and 4,183.79 is: 5,773.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.58 : 10,654.43 = 4,183.79 : x
  2. Step 2: Convert to fraction form
    7,720.58/10,654.43 = 4,183.79/x
  3. Step 3: Cross multiply
    7,720.58x = 10,654.43 × 4,183.79
  4. Step 4: Simplify right side
    7,720.58x = 44,575,823.50
  5. Step 5: Solve for x
    x = 44,575,823.50/7,720.58
  6. Step 6: Final answer
    x = 5,773.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.