Home / 3,513.58-5,269.08-1,321.72

Finding the Fourth Proportional to 3,513.58, 5,269.08 and 1,321.72

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Solution

The fourth proportional to 3,513.58, 5,269.08 and 1,321.72 is: 1,982.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.58 : 5,269.08 = 1,321.72 : x
  2. Step 2: Convert to fraction form
    3,513.58/5,269.08 = 1,321.72/x
  3. Step 3: Cross multiply
    3,513.58x = 5,269.08 × 1,321.72
  4. Step 4: Simplify right side
    3,513.58x = 6,964,248.42
  5. Step 5: Solve for x
    x = 6,964,248.42/3,513.58
  6. Step 6: Final answer
    x = 1,982.09

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1.5x scale

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.