Home / 3,351.72-4,621.68-2,905.68

Finding the Fourth Proportional to 3,351.72, 4,621.68 and 2,905.68

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Solution

The fourth proportional to 3,351.72, 4,621.68 and 2,905.68 is: 4,006.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.72 : 4,621.68 = 2,905.68 : x
  2. Step 2: Convert to fraction form
    3,351.72/4,621.68 = 2,905.68/x
  3. Step 3: Cross multiply
    3,351.72x = 4,621.68 × 2,905.68
  4. Step 4: Simplify right side
    3,351.72x = 13,429,123.14
  5. Step 5: Solve for x
    x = 13,429,123.14/3,351.72
  6. Step 6: Final answer
    x = 4,006.64

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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.