Home / 3,615.71-5,422.61-1,640.52

Finding the Fourth Proportional to 3,615.71, 5,422.61 and 1,640.52

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Solution

The fourth proportional to 3,615.71, 5,422.61 and 1,640.52 is: 2,460.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.71 : 5,422.61 = 1,640.52 : x
  2. Step 2: Convert to fraction form
    3,615.71/5,422.61 = 1,640.52/x
  3. Step 3: Cross multiply
    3,615.71x = 5,422.61 × 1,640.52
  4. Step 4: Simplify right side
    3,615.71x = 8,895,904.26
  5. Step 5: Solve for x
    x = 8,895,904.26/3,615.71
  6. Step 6: Final answer
    x = 2,460.35

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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.