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Finding the Fourth Proportional to 3,638.55, 5,458.02 and 1,041.55

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Solution

The fourth proportional to 3,638.55, 5,458.02 and 1,041.55 is: 1,562.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.55 : 5,458.02 = 1,041.55 : x
  2. Step 2: Convert to fraction form
    3,638.55/5,458.02 = 1,041.55/x
  3. Step 3: Cross multiply
    3,638.55x = 5,458.02 × 1,041.55
  4. Step 4: Simplify right side
    3,638.55x = 5,684,800.73
  5. Step 5: Solve for x
    x = 5,684,800.73/3,638.55
  6. Step 6: Final answer
    x = 1,562.38

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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.