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Finding the Fourth Proportional to 3,685.52, 5,527.04 and 1,219.64

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Solution

The fourth proportional to 3,685.52, 5,527.04 and 1,219.64 is: 1,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.52 : 5,527.04 = 1,219.64 : x
  2. Step 2: Convert to fraction form
    3,685.52/5,527.04 = 1,219.64/x
  3. Step 3: Cross multiply
    3,685.52x = 5,527.04 × 1,219.64
  4. Step 4: Simplify right side
    3,685.52x = 6,740,999.07
  5. Step 5: Solve for x
    x = 6,740,999.07/3,685.52
  6. Step 6: Final answer
    x = 1,829.05

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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.