Home / 3,505.61-5,257.64-1,425.06

Finding the Fourth Proportional to 3,505.61, 5,257.64 and 1,425.06

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Solution

The fourth proportional to 3,505.61, 5,257.64 and 1,425.06 is: 2,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.61 : 5,257.64 = 1,425.06 : x
  2. Step 2: Convert to fraction form
    3,505.61/5,257.64 = 1,425.06/x
  3. Step 3: Cross multiply
    3,505.61x = 5,257.64 × 1,425.06
  4. Step 4: Simplify right side
    3,505.61x = 7,492,456.02
  5. Step 5: Solve for x
    x = 7,492,456.02/3,505.61
  6. Step 6: Final answer
    x = 2,137.27

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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.