Home / 5,485.13-8,217.36-2,708.55

Finding the Fourth Proportional to 5,485.13, 8,217.36 and 2,708.55

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Solution

The fourth proportional to 5,485.13, 8,217.36 and 2,708.55 is: 4,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.13 : 8,217.36 = 2,708.55 : x
  2. Step 2: Convert to fraction form
    5,485.13/8,217.36 = 2,708.55/x
  3. Step 3: Cross multiply
    5,485.13x = 8,217.36 × 2,708.55
  4. Step 4: Simplify right side
    5,485.13x = 22,257,130.43
  5. Step 5: Solve for x
    x = 22,257,130.43/5,485.13
  6. Step 6: Final answer
    x = 4,057.72

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1.5x scale

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.