Home / 1,267.20-1,897.98-1,236.18

Finding the Fourth Proportional to 1,267.20, 1,897.98 and 1,236.18

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Solution

The fourth proportional to 1,267.20, 1,897.98 and 1,236.18 is: 1,851.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.20 : 1,897.98 = 1,236.18 : x
  2. Step 2: Convert to fraction form
    1,267.20/1,897.98 = 1,236.18/x
  3. Step 3: Cross multiply
    1,267.20x = 1,897.98 × 1,236.18
  4. Step 4: Simplify right side
    1,267.20x = 2,346,244.92
  5. Step 5: Solve for x
    x = 2,346,244.92/1,267.20
  6. Step 6: Final answer
    x = 1,851.52

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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.