Home / 5,183.63-7,776.65-1,720.88

Finding the Fourth Proportional to 5,183.63, 7,776.65 and 1,720.88

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Solution

The fourth proportional to 5,183.63, 7,776.65 and 1,720.88 is: 2,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.63 : 7,776.65 = 1,720.88 : x
  2. Step 2: Convert to fraction form
    5,183.63/7,776.65 = 1,720.88/x
  3. Step 3: Cross multiply
    5,183.63x = 7,776.65 × 1,720.88
  4. Step 4: Simplify right side
    5,183.63x = 13,382,646.87
  5. Step 5: Solve for x
    x = 13,382,646.87/5,183.63
  6. Step 6: Final answer
    x = 2,581.72

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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.