Home / 1,686.14-2,524.78-1,355.31

Finding the Fourth Proportional to 1,686.14, 2,524.78 and 1,355.31

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Solution

The fourth proportional to 1,686.14, 2,524.78 and 1,355.31 is: 2,029.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.14 : 2,524.78 = 1,355.31 : x
  2. Step 2: Convert to fraction form
    1,686.14/2,524.78 = 1,355.31/x
  3. Step 3: Cross multiply
    1,686.14x = 2,524.78 × 1,355.31
  4. Step 4: Simplify right side
    1,686.14x = 3,421,859.58
  5. Step 5: Solve for x
    x = 3,421,859.58/1,686.14
  6. Step 6: Final answer
    x = 2,029.41

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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.