Home / 1,418.06-2,127.36-443.96

Finding the Fourth Proportional to 1,418.06, 2,127.36 and 443.96

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Solution

The fourth proportional to 1,418.06, 2,127.36 and 443.96 is: 666.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.06 : 2,127.36 = 443.96 : x
  2. Step 2: Convert to fraction form
    1,418.06/2,127.36 = 443.96/x
  3. Step 3: Cross multiply
    1,418.06x = 2,127.36 × 443.96
  4. Step 4: Simplify right side
    1,418.06x = 944,462.75
  5. Step 5: Solve for x
    x = 944,462.75/1,418.06
  6. Step 6: Final answer
    x = 666.02

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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.