Home / 4,652.40-6,972.68-2,181.78

Finding the Fourth Proportional to 4,652.40, 6,972.68 and 2,181.78

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Solution

The fourth proportional to 4,652.40, 6,972.68 and 2,181.78 is: 3,269.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,652.40 : 6,972.68 = 2,181.78 : x
  2. Step 2: Convert to fraction form
    4,652.40/6,972.68 = 2,181.78/x
  3. Step 3: Cross multiply
    4,652.40x = 6,972.68 × 2,181.78
  4. Step 4: Simplify right side
    4,652.40x = 15,212,853.77
  5. Step 5: Solve for x
    x = 15,212,853.77/4,652.40
  6. Step 6: Final answer
    x = 3,269.89

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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.