Home / 1,675.86-2,504.16-1,278.36

Finding the Fourth Proportional to 1,675.86, 2,504.16 and 1,278.36

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Solution

The fourth proportional to 1,675.86, 2,504.16 and 1,278.36 is: 1,910.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.86 : 2,504.16 = 1,278.36 : x
  2. Step 2: Convert to fraction form
    1,675.86/2,504.16 = 1,278.36/x
  3. Step 3: Cross multiply
    1,675.86x = 2,504.16 × 1,278.36
  4. Step 4: Simplify right side
    1,675.86x = 3,201,217.98
  5. Step 5: Solve for x
    x = 3,201,217.98/1,675.86
  6. Step 6: Final answer
    x = 1,910.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.