Home / 1,418.46-2,127.71-444.57

Finding the Fourth Proportional to 1,418.46, 2,127.71 and 444.57

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Solution

The fourth proportional to 1,418.46, 2,127.71 and 444.57 is: 666.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.46 : 2,127.71 = 444.57 : x
  2. Step 2: Convert to fraction form
    1,418.46/2,127.71 = 444.57/x
  3. Step 3: Cross multiply
    1,418.46x = 2,127.71 × 444.57
  4. Step 4: Simplify right side
    1,418.46x = 945,916.03
  5. Step 5: Solve for x
    x = 945,916.03/1,418.46
  6. Step 6: Final answer
    x = 666.86

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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.