Home / 1,243.77-1,857.81-933.99

Finding the Fourth Proportional to 1,243.77, 1,857.81 and 933.99

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Solution

The fourth proportional to 1,243.77, 1,857.81 and 933.99 is: 1,395.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243.77 : 1,857.81 = 933.99 : x
  2. Step 2: Convert to fraction form
    1,243.77/1,857.81 = 933.99/x
  3. Step 3: Cross multiply
    1,243.77x = 1,857.81 × 933.99
  4. Step 4: Simplify right side
    1,243.77x = 1,735,175.96
  5. Step 5: Solve for x
    x = 1,735,175.96/1,243.77
  6. Step 6: Final answer
    x = 1,395.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.