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Finding the Fourth Proportional to 3,665.48, 5,497.62 and 1,200.50

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Solution

The fourth proportional to 3,665.48, 5,497.62 and 1,200.50 is: 1,800.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,665.48 : 5,497.62 = 1,200.50 : x
  2. Step 2: Convert to fraction form
    3,665.48/5,497.62 = 1,200.50/x
  3. Step 3: Cross multiply
    3,665.48x = 5,497.62 × 1,200.50
  4. Step 4: Simplify right side
    3,665.48x = 6,599,892.81
  5. Step 5: Solve for x
    x = 6,599,892.81/3,665.48
  6. Step 6: Final answer
    x = 1,800.55

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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.