Home / 2,776.16-4,161.33-1,313.57

Finding the Fourth Proportional to 2,776.16, 4,161.33 and 1,313.57

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Solution

The fourth proportional to 2,776.16, 4,161.33 and 1,313.57 is: 1,968.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.16 : 4,161.33 = 1,313.57 : x
  2. Step 2: Convert to fraction form
    2,776.16/4,161.33 = 1,313.57/x
  3. Step 3: Cross multiply
    2,776.16x = 4,161.33 × 1,313.57
  4. Step 4: Simplify right side
    2,776.16x = 5,466,177.44
  5. Step 5: Solve for x
    x = 5,466,177.44/2,776.16
  6. Step 6: Final answer
    x = 1,968.97

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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.