Home / 5,515.47-8,274.58-1,619.88

Finding the Fourth Proportional to 5,515.47, 8,274.58 and 1,619.88

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Solution

The fourth proportional to 5,515.47, 8,274.58 and 1,619.88 is: 2,430.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.47 : 8,274.58 = 1,619.88 : x
  2. Step 2: Convert to fraction form
    5,515.47/8,274.58 = 1,619.88/x
  3. Step 3: Cross multiply
    5,515.47x = 8,274.58 × 1,619.88
  4. Step 4: Simplify right side
    5,515.47x = 13,403,791.57
  5. Step 5: Solve for x
    x = 13,403,791.57/5,515.47
  6. Step 6: Final answer
    x = 2,430.22

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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.