Home / 1,505.36-2,077.62-1,087.12

Finding the Fourth Proportional to 1,505.36, 2,077.62 and 1,087.12

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Solution

The fourth proportional to 1,505.36, 2,077.62 and 1,087.12 is: 1,500.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.36 : 2,077.62 = 1,087.12 : x
  2. Step 2: Convert to fraction form
    1,505.36/2,077.62 = 1,087.12/x
  3. Step 3: Cross multiply
    1,505.36x = 2,077.62 × 1,087.12
  4. Step 4: Simplify right side
    1,505.36x = 2,258,622.25
  5. Step 5: Solve for x
    x = 2,258,622.25/1,505.36
  6. Step 6: Final answer
    x = 1,500.39

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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.