Home / 2,768.77-4,153.34-1,309.33

Finding the Fourth Proportional to 2,768.77, 4,153.34 and 1,309.33

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Solution

The fourth proportional to 2,768.77, 4,153.34 and 1,309.33 is: 1,964.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.77 : 4,153.34 = 1,309.33 : x
  2. Step 2: Convert to fraction form
    2,768.77/4,153.34 = 1,309.33/x
  3. Step 3: Cross multiply
    2,768.77x = 4,153.34 × 1,309.33
  4. Step 4: Simplify right side
    2,768.77x = 5,438,092.66
  5. Step 5: Solve for x
    x = 5,438,092.66/2,768.77
  6. Step 6: Final answer
    x = 1,964.08

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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.