Home / 3,619.61-5,425.08-1,865.45

Finding the Fourth Proportional to 3,619.61, 5,425.08 and 1,865.45

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Solution

The fourth proportional to 3,619.61, 5,425.08 and 1,865.45 is: 2,795.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.61 : 5,425.08 = 1,865.45 : x
  2. Step 2: Convert to fraction form
    3,619.61/5,425.08 = 1,865.45/x
  3. Step 3: Cross multiply
    3,619.61x = 5,425.08 × 1,865.45
  4. Step 4: Simplify right side
    3,619.61x = 10,120,215.49
  5. Step 5: Solve for x
    x = 10,120,215.49/3,619.61
  6. Step 6: Final answer
    x = 2,795.94

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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.