Home / 1,267.17-1,901.97-1,187.60

Finding the Fourth Proportional to 1,267.17, 1,901.97 and 1,187.60

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Solution

The fourth proportional to 1,267.17, 1,901.97 and 1,187.60 is: 1,782.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.17 : 1,901.97 = 1,187.60 : x
  2. Step 2: Convert to fraction form
    1,267.17/1,901.97 = 1,187.60/x
  3. Step 3: Cross multiply
    1,267.17x = 1,901.97 × 1,187.60
  4. Step 4: Simplify right side
    1,267.17x = 2,258,770.06
  5. Step 5: Solve for x
    x = 2,258,770.06/1,267.17
  6. Step 6: Final answer
    x = 1,782.53

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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.