Home / 1,418.29-2,127.71-444.13

Finding the Fourth Proportional to 1,418.29, 2,127.71 and 444.13

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Solution

The fourth proportional to 1,418.29, 2,127.71 and 444.13 is: 666.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.29 : 2,127.71 = 444.13 : x
  2. Step 2: Convert to fraction form
    1,418.29/2,127.71 = 444.13/x
  3. Step 3: Cross multiply
    1,418.29x = 2,127.71 × 444.13
  4. Step 4: Simplify right side
    1,418.29x = 944,977.62
  5. Step 5: Solve for x
    x = 944,977.62/1,418.29
  6. Step 6: Final answer
    x = 666.28

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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.