Home / 1,418.47-2,127.39-444.43

Finding the Fourth Proportional to 1,418.47, 2,127.39 and 444.43

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Solution

The fourth proportional to 1,418.47, 2,127.39 and 444.43 is: 666.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.47 : 2,127.39 = 444.43 : x
  2. Step 2: Convert to fraction form
    1,418.47/2,127.39 = 444.43/x
  3. Step 3: Cross multiply
    1,418.47x = 2,127.39 × 444.43
  4. Step 4: Simplify right side
    1,418.47x = 945,475.94
  5. Step 5: Solve for x
    x = 945,475.94/1,418.47
  6. Step 6: Final answer
    x = 666.55

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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.