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Finding the Fourth Proportional to 6,354.90, 9,529.16 and 1,971.81

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Solution

The fourth proportional to 6,354.90, 9,529.16 and 1,971.81 is: 2,956.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,354.90 : 9,529.16 = 1,971.81 : x
  2. Step 2: Convert to fraction form
    6,354.90/9,529.16 = 1,971.81/x
  3. Step 3: Cross multiply
    6,354.90x = 9,529.16 × 1,971.81
  4. Step 4: Simplify right side
    6,354.90x = 18,789,683.12
  5. Step 5: Solve for x
    x = 18,789,683.12/6,354.90
  6. Step 6: Final answer
    x = 2,956.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.