Home / 1,349.47-1,861.82-1,100.36

Finding the Fourth Proportional to 1,349.47, 1,861.82 and 1,100.36

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Solution

The fourth proportional to 1,349.47, 1,861.82 and 1,100.36 is: 1,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.47 : 1,861.82 = 1,100.36 : x
  2. Step 2: Convert to fraction form
    1,349.47/1,861.82 = 1,100.36/x
  3. Step 3: Cross multiply
    1,349.47x = 1,861.82 × 1,100.36
  4. Step 4: Simplify right side
    1,349.47x = 2,048,657.44
  5. Step 5: Solve for x
    x = 2,048,657.44/1,349.47
  6. Step 6: Final answer
    x = 1,518.13

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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.