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Finding the Fourth Proportional to 3,602.43, 4,971.42 and 2,205.18

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Solution

The fourth proportional to 3,602.43, 4,971.42 and 2,205.18 is: 3,043.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.43 : 4,971.42 = 2,205.18 : x
  2. Step 2: Convert to fraction form
    3,602.43/4,971.42 = 2,205.18/x
  3. Step 3: Cross multiply
    3,602.43x = 4,971.42 × 2,205.18
  4. Step 4: Simplify right side
    3,602.43x = 10,962,875.96
  5. Step 5: Solve for x
    x = 10,962,875.96/3,602.43
  6. Step 6: Final answer
    x = 3,043.19

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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.