Home / 1,525.64-2,286.75-1,086.80

Finding the Fourth Proportional to 1,525.64, 2,286.75 and 1,086.80

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Solution

The fourth proportional to 1,525.64, 2,286.75 and 1,086.80 is: 1,628.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.64 : 2,286.75 = 1,086.80 : x
  2. Step 2: Convert to fraction form
    1,525.64/2,286.75 = 1,086.80/x
  3. Step 3: Cross multiply
    1,525.64x = 2,286.75 × 1,086.80
  4. Step 4: Simplify right side
    1,525.64x = 2,485,239.90
  5. Step 5: Solve for x
    x = 2,485,239.90/1,525.64
  6. Step 6: Final answer
    x = 1,628.98

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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.