Home / 5,184.26-7,780.89-2,720.81

Finding the Fourth Proportional to 5,184.26, 7,780.89 and 2,720.81

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Solution

The fourth proportional to 5,184.26, 7,780.89 and 2,720.81 is: 4,083.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,184.26 : 7,780.89 = 2,720.81 : x
  2. Step 2: Convert to fraction form
    5,184.26/7,780.89 = 2,720.81/x
  3. Step 3: Cross multiply
    5,184.26x = 7,780.89 × 2,720.81
  4. Step 4: Simplify right side
    5,184.26x = 21,170,284.42
  5. Step 5: Solve for x
    x = 21,170,284.42/5,184.26
  6. Step 6: Final answer
    x = 4,083.57

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1.5x scale

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.