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Finding the Fourth Proportional to 3,503.79, 4,835.57 and 2,618.05

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Solution

The fourth proportional to 3,503.79, 4,835.57 and 2,618.05 is: 3,613.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.79 : 4,835.57 = 2,618.05 : x
  2. Step 2: Convert to fraction form
    3,503.79/4,835.57 = 2,618.05/x
  3. Step 3: Cross multiply
    3,503.79x = 4,835.57 × 2,618.05
  4. Step 4: Simplify right side
    3,503.79x = 12,659,750.95
  5. Step 5: Solve for x
    x = 12,659,750.95/3,503.79
  6. Step 6: Final answer
    x = 3,613.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.