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Finding the Fourth Proportional to 3,598.55, 4,965.91 and 2,005.21

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Solution

The fourth proportional to 3,598.55, 4,965.91 and 2,005.21 is: 2,767.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,598.55 : 4,965.91 = 2,005.21 : x
  2. Step 2: Convert to fraction form
    3,598.55/4,965.91 = 2,005.21/x
  3. Step 3: Cross multiply
    3,598.55x = 4,965.91 × 2,005.21
  4. Step 4: Simplify right side
    3,598.55x = 9,957,657.54
  5. Step 5: Solve for x
    x = 9,957,657.54/3,598.55
  6. Step 6: Final answer
    x = 2,767.13

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1.5x scale

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.