Home / 1,512.36-2,087.64-1,164.06

Finding the Fourth Proportional to 1,512.36, 2,087.64 and 1,164.06

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Solution

The fourth proportional to 1,512.36, 2,087.64 and 1,164.06 is: 1,606.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.36 : 2,087.64 = 1,164.06 : x
  2. Step 2: Convert to fraction form
    1,512.36/2,087.64 = 1,164.06/x
  3. Step 3: Cross multiply
    1,512.36x = 2,087.64 × 1,164.06
  4. Step 4: Simplify right side
    1,512.36x = 2,430,138.22
  5. Step 5: Solve for x
    x = 2,430,138.22/1,512.36
  6. Step 6: Final answer
    x = 1,606.85

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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.