Home / 1,812.24-2,717.28-945.36

Finding the Fourth Proportional to 1,812.24, 2,717.28 and 945.36

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Solution

The fourth proportional to 1,812.24, 2,717.28 and 945.36 is: 1,417.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.24 : 2,717.28 = 945.36 : x
  2. Step 2: Convert to fraction form
    1,812.24/2,717.28 = 945.36/x
  3. Step 3: Cross multiply
    1,812.24x = 2,717.28 × 945.36
  4. Step 4: Simplify right side
    1,812.24x = 2,568,807.82
  5. Step 5: Solve for x
    x = 2,568,807.82/1,812.24
  6. Step 6: Final answer
    x = 1,417.48

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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.