Home / 2,271.52-3,404.40-1,961.12

Finding the Fourth Proportional to 2,271.52, 3,404.40 and 1,961.12

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Solution

The fourth proportional to 2,271.52, 3,404.40 and 1,961.12 is: 2,939.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.52 : 3,404.40 = 1,961.12 : x
  2. Step 2: Convert to fraction form
    2,271.52/3,404.40 = 1,961.12/x
  3. Step 3: Cross multiply
    2,271.52x = 3,404.40 × 1,961.12
  4. Step 4: Simplify right side
    2,271.52x = 6,676,436.93
  5. Step 5: Solve for x
    x = 6,676,436.93/2,271.52
  6. Step 6: Final answer
    x = 2,939.19

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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.