Home / 1,518.35-2,091.57-1,269.59

Finding the Fourth Proportional to 1,518.35, 2,091.57 and 1,269.59

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Solution

The fourth proportional to 1,518.35, 2,091.57 and 1,269.59 is: 1,748.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.35 : 2,091.57 = 1,269.59 : x
  2. Step 2: Convert to fraction form
    1,518.35/2,091.57 = 1,269.59/x
  3. Step 3: Cross multiply
    1,518.35x = 2,091.57 × 1,269.59
  4. Step 4: Simplify right side
    1,518.35x = 2,655,436.36
  5. Step 5: Solve for x
    x = 2,655,436.36/1,518.35
  6. Step 6: Final answer
    x = 1,748.90

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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.