Home / 1,476.24-2,212.81-744.28

Finding the Fourth Proportional to 1,476.24, 2,212.81 and 744.28

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Solution

The fourth proportional to 1,476.24, 2,212.81 and 744.28 is: 1,115.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.24 : 2,212.81 = 744.28 : x
  2. Step 2: Convert to fraction form
    1,476.24/2,212.81 = 744.28/x
  3. Step 3: Cross multiply
    1,476.24x = 2,212.81 × 744.28
  4. Step 4: Simplify right side
    1,476.24x = 1,646,950.23
  5. Step 5: Solve for x
    x = 1,646,950.23/1,476.24
  6. Step 6: Final answer
    x = 1,115.64

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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.