Home / 2,776.93-4,163.43-1,389.27

Finding the Fourth Proportional to 2,776.93, 4,163.43 and 1,389.27

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Solution

The fourth proportional to 2,776.93, 4,163.43 and 1,389.27 is: 2,082.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.93 : 4,163.43 = 1,389.27 : x
  2. Step 2: Convert to fraction form
    2,776.93/4,163.43 = 1,389.27/x
  3. Step 3: Cross multiply
    2,776.93x = 4,163.43 × 1,389.27
  4. Step 4: Simplify right side
    2,776.93x = 5,784,128.40
  5. Step 5: Solve for x
    x = 5,784,128.40/2,776.93
  6. Step 6: Final answer
    x = 2,082.92

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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.