Home / 5,615.13-8,422.82-1,719.54

Finding the Fourth Proportional to 5,615.13, 8,422.82 and 1,719.54

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Solution

The fourth proportional to 5,615.13, 8,422.82 and 1,719.54 is: 2,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.13 : 8,422.82 = 1,719.54 : x
  2. Step 2: Convert to fraction form
    5,615.13/8,422.82 = 1,719.54/x
  3. Step 3: Cross multiply
    5,615.13x = 8,422.82 × 1,719.54
  4. Step 4: Simplify right side
    5,615.13x = 14,483,367.31
  5. Step 5: Solve for x
    x = 14,483,367.31/5,615.13
  6. Step 6: Final answer
    x = 2,579.35

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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.