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Finding the Fourth Proportional to 3,656.46, 5,485.50 and 1,059.42

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Solution

The fourth proportional to 3,656.46, 5,485.50 and 1,059.42 is: 1,589.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.46 : 5,485.50 = 1,059.42 : x
  2. Step 2: Convert to fraction form
    3,656.46/5,485.50 = 1,059.42/x
  3. Step 3: Cross multiply
    3,656.46x = 5,485.50 × 1,059.42
  4. Step 4: Simplify right side
    3,656.46x = 5,811,448.41
  5. Step 5: Solve for x
    x = 5,811,448.41/3,656.46
  6. Step 6: Final answer
    x = 1,589.36

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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.