Home / 1,021.36-1,532.88-444.16

Finding the Fourth Proportional to 1,021.36, 1,532.88 and 444.16

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Solution

The fourth proportional to 1,021.36, 1,532.88 and 444.16 is: 666.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021.36 : 1,532.88 = 444.16 : x
  2. Step 2: Convert to fraction form
    1,021.36/1,532.88 = 444.16/x
  3. Step 3: Cross multiply
    1,021.36x = 1,532.88 × 444.16
  4. Step 4: Simplify right side
    1,021.36x = 680,843.98
  5. Step 5: Solve for x
    x = 680,843.98/1,021.36
  6. Step 6: Final answer
    x = 666.61

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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.