Home / 1,422.43-2,124.88-1,029.06

Finding the Fourth Proportional to 1,422.43, 2,124.88 and 1,029.06

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Solution

The fourth proportional to 1,422.43, 2,124.88 and 1,029.06 is: 1,537.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422.43 : 2,124.88 = 1,029.06 : x
  2. Step 2: Convert to fraction form
    1,422.43/2,124.88 = 1,029.06/x
  3. Step 3: Cross multiply
    1,422.43x = 2,124.88 × 1,029.06
  4. Step 4: Simplify right side
    1,422.43x = 2,186,629.01
  5. Step 5: Solve for x
    x = 2,186,629.01/1,422.43
  6. Step 6: Final answer
    x = 1,537.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.