Home / 1,686.37-2,525.70-1,489.28

Finding the Fourth Proportional to 1,686.37, 2,525.70 and 1,489.28

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Solution

The fourth proportional to 1,686.37, 2,525.70 and 1,489.28 is: 2,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.37 : 2,525.70 = 1,489.28 : x
  2. Step 2: Convert to fraction form
    1,686.37/2,525.70 = 1,489.28/x
  3. Step 3: Cross multiply
    1,686.37x = 2,525.70 × 1,489.28
  4. Step 4: Simplify right side
    1,686.37x = 3,761,474.50
  5. Step 5: Solve for x
    x = 3,761,474.50/1,686.37
  6. Step 6: Final answer
    x = 2,230.52

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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.