Home / 2,782.68-4,153.71-2,577.12

Finding the Fourth Proportional to 2,782.68, 4,153.71 and 2,577.12

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Solution

The fourth proportional to 2,782.68, 4,153.71 and 2,577.12 is: 3,846.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.68 : 4,153.71 = 2,577.12 : x
  2. Step 2: Convert to fraction form
    2,782.68/4,153.71 = 2,577.12/x
  3. Step 3: Cross multiply
    2,782.68x = 4,153.71 × 2,577.12
  4. Step 4: Simplify right side
    2,782.68x = 10,704,609.12
  5. Step 5: Solve for x
    x = 10,704,609.12/2,782.68
  6. Step 6: Final answer
    x = 3,846.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.