Home / 2,769.80-3,822.39-1,574.98

Finding the Fourth Proportional to 2,769.80, 3,822.39 and 1,574.98

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Solution

The fourth proportional to 2,769.80, 3,822.39 and 1,574.98 is: 2,173.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.80 : 3,822.39 = 1,574.98 : x
  2. Step 2: Convert to fraction form
    2,769.80/3,822.39 = 1,574.98/x
  3. Step 3: Cross multiply
    2,769.80x = 3,822.39 × 1,574.98
  4. Step 4: Simplify right side
    2,769.80x = 6,020,178.25
  5. Step 5: Solve for x
    x = 6,020,178.25/2,769.80
  6. Step 6: Final answer
    x = 2,173.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.