Home / 5,854.20-8,078.81-3,615.56

Finding the Fourth Proportional to 5,854.20, 8,078.81 and 3,615.56

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Solution

The fourth proportional to 5,854.20, 8,078.81 and 3,615.56 is: 4,989.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,854.20 : 8,078.81 = 3,615.56 : x
  2. Step 2: Convert to fraction form
    5,854.20/8,078.81 = 3,615.56/x
  3. Step 3: Cross multiply
    5,854.20x = 8,078.81 × 3,615.56
  4. Step 4: Simplify right side
    5,854.20x = 29,209,422.28
  5. Step 5: Solve for x
    x = 29,209,422.28/5,854.20
  6. Step 6: Final answer
    x = 4,989.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.