Home / 2,434.06-3,643.14-1,321.80

Finding the Fourth Proportional to 2,434.06, 3,643.14 and 1,321.80

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Solution

The fourth proportional to 2,434.06, 3,643.14 and 1,321.80 is: 1,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,434.06 : 3,643.14 = 1,321.80 : x
  2. Step 2: Convert to fraction form
    2,434.06/3,643.14 = 1,321.80/x
  3. Step 3: Cross multiply
    2,434.06x = 3,643.14 × 1,321.80
  4. Step 4: Simplify right side
    2,434.06x = 4,815,502.45
  5. Step 5: Solve for x
    x = 4,815,502.45/2,434.06
  6. Step 6: Final answer
    x = 1,978.38

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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.