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Finding the Fourth Proportional to 3,641.55, 5,463.51 and 2,990.58

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Solution

The fourth proportional to 3,641.55, 5,463.51 and 2,990.58 is: 4,486.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,641.55 : 5,463.51 = 2,990.58 : x
  2. Step 2: Convert to fraction form
    3,641.55/5,463.51 = 2,990.58/x
  3. Step 3: Cross multiply
    3,641.55x = 5,463.51 × 2,990.58
  4. Step 4: Simplify right side
    3,641.55x = 16,339,063.74
  5. Step 5: Solve for x
    x = 16,339,063.74/3,641.55
  6. Step 6: Final answer
    x = 4,486.84

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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.