Home / 1,418.10-2,127.14-444.20

Finding the Fourth Proportional to 1,418.10, 2,127.14 and 444.20

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Solution

The fourth proportional to 1,418.10, 2,127.14 and 444.20 is: 666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.10 : 2,127.14 = 444.20 : x
  2. Step 2: Convert to fraction form
    1,418.10/2,127.14 = 444.20/x
  3. Step 3: Cross multiply
    1,418.10x = 2,127.14 × 444.20
  4. Step 4: Simplify right side
    1,418.10x = 944,875.59
  5. Step 5: Solve for x
    x = 944,875.59/1,418.10
  6. Step 6: Final answer
    x = 666.30

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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.