Home / 1,416.29-2,124.36-443.07

Finding the Fourth Proportional to 1,416.29, 2,124.36 and 443.07

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Solution

The fourth proportional to 1,416.29, 2,124.36 and 443.07 is: 664.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.29 : 2,124.36 = 443.07 : x
  2. Step 2: Convert to fraction form
    1,416.29/2,124.36 = 443.07/x
  3. Step 3: Cross multiply
    1,416.29x = 2,124.36 × 443.07
  4. Step 4: Simplify right side
    1,416.29x = 941,240.19
  5. Step 5: Solve for x
    x = 941,240.19/1,416.29
  6. Step 6: Final answer
    x = 664.58

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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.