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Finding the Fourth Proportional to 3,606.79, 4,973.73 and 3,207.19

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Solution

The fourth proportional to 3,606.79, 4,973.73 and 3,207.19 is: 4,422.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.79 : 4,973.73 = 3,207.19 : x
  2. Step 2: Convert to fraction form
    3,606.79/4,973.73 = 3,207.19/x
  3. Step 3: Cross multiply
    3,606.79x = 4,973.73 × 3,207.19
  4. Step 4: Simplify right side
    3,606.79x = 15,951,697.12
  5. Step 5: Solve for x
    x = 15,951,697.12/3,606.79
  6. Step 6: Final answer
    x = 4,422.69

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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.