Home / 6,687.60-10,031.04-3,214.32

Finding the Fourth Proportional to 6,687.60, 10,031.04 and 3,214.32

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Solution

The fourth proportional to 6,687.60, 10,031.04 and 3,214.32 is: 4,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.60 : 10,031.04 = 3,214.32 : x
  2. Step 2: Convert to fraction form
    6,687.60/10,031.04 = 3,214.32/x
  3. Step 3: Cross multiply
    6,687.60x = 10,031.04 × 3,214.32
  4. Step 4: Simplify right side
    6,687.60x = 32,242,972.49
  5. Step 5: Solve for x
    x = 32,242,972.49/6,687.60
  6. Step 6: Final answer
    x = 4,821.31

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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.