Home / 1,436.81-2,153.32-1,241.80

Finding the Fourth Proportional to 1,436.81, 2,153.32 and 1,241.80

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Solution

The fourth proportional to 1,436.81, 2,153.32 and 1,241.80 is: 1,861.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.81 : 2,153.32 = 1,241.80 : x
  2. Step 2: Convert to fraction form
    1,436.81/2,153.32 = 1,241.80/x
  3. Step 3: Cross multiply
    1,436.81x = 2,153.32 × 1,241.80
  4. Step 4: Simplify right side
    1,436.81x = 2,673,984.29
  5. Step 5: Solve for x
    x = 2,673,984.29/1,436.81
  6. Step 6: Final answer
    x = 1,861.06

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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.