Home / 1,299.29-1,935.99-1,236.51

Finding the Fourth Proportional to 1,299.29, 1,935.99 and 1,236.51

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Solution

The fourth proportional to 1,299.29, 1,935.99 and 1,236.51 is: 1,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299.29 : 1,935.99 = 1,236.51 : x
  2. Step 2: Convert to fraction form
    1,299.29/1,935.99 = 1,236.51/x
  3. Step 3: Cross multiply
    1,299.29x = 1,935.99 × 1,236.51
  4. Step 4: Simplify right side
    1,299.29x = 2,393,870.99
  5. Step 5: Solve for x
    x = 2,393,870.99/1,299.29
  6. Step 6: Final answer
    x = 1,842.45

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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.