Home / 3,655.80-5,475.60-3,245.40

Finding the Fourth Proportional to 3,655.80, 5,475.60 and 3,245.40

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Solution

The fourth proportional to 3,655.80, 5,475.60 and 3,245.40 is: 4,860.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.80 : 5,475.60 = 3,245.40 : x
  2. Step 2: Convert to fraction form
    3,655.80/5,475.60 = 3,245.40/x
  3. Step 3: Cross multiply
    3,655.80x = 5,475.60 × 3,245.40
  4. Step 4: Simplify right side
    3,655.80x = 17,770,512.24
  5. Step 5: Solve for x
    x = 17,770,512.24/3,655.80
  6. Step 6: Final answer
    x = 4,860.91

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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.