Home / 2,769.86-3,821.76-1,574.90

Finding the Fourth Proportional to 2,769.86, 3,821.76 and 1,574.90

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Solution

The fourth proportional to 2,769.86, 3,821.76 and 1,574.90 is: 2,172.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.86 : 3,821.76 = 1,574.90 : x
  2. Step 2: Convert to fraction form
    2,769.86/3,821.76 = 1,574.90/x
  3. Step 3: Cross multiply
    2,769.86x = 3,821.76 × 1,574.90
  4. Step 4: Simplify right side
    2,769.86x = 6,018,889.82
  5. Step 5: Solve for x
    x = 6,018,889.82/2,769.86
  6. Step 6: Final answer
    x = 2,172.99

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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.