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Finding the Fourth Proportional to 3,602.89, 4,971.55 and 2,009.17

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Solution

The fourth proportional to 3,602.89, 4,971.55 and 2,009.17 is: 2,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.89 : 4,971.55 = 2,009.17 : x
  2. Step 2: Convert to fraction form
    3,602.89/4,971.55 = 2,009.17/x
  3. Step 3: Cross multiply
    3,602.89x = 4,971.55 × 2,009.17
  4. Step 4: Simplify right side
    3,602.89x = 9,988,662.34
  5. Step 5: Solve for x
    x = 9,988,662.34/3,602.89
  6. Step 6: Final answer
    x = 2,772.40

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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.