Home / 1,269.39-1,752.96-1,200.38

Finding the Fourth Proportional to 1,269.39, 1,752.96 and 1,200.38

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Solution

The fourth proportional to 1,269.39, 1,752.96 and 1,200.38 is: 1,657.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.39 : 1,752.96 = 1,200.38 : x
  2. Step 2: Convert to fraction form
    1,269.39/1,752.96 = 1,200.38/x
  3. Step 3: Cross multiply
    1,269.39x = 1,752.96 × 1,200.38
  4. Step 4: Simplify right side
    1,269.39x = 2,104,209.36
  5. Step 5: Solve for x
    x = 2,104,209.36/1,269.39
  6. Step 6: Final answer
    x = 1,657.65

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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.