Home / 2,221.12-3,330.48-1,853.92

Finding the Fourth Proportional to 2,221.12, 3,330.48 and 1,853.92

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Solution

The fourth proportional to 2,221.12, 3,330.48 and 1,853.92 is: 2,779.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.12 : 3,330.48 = 1,853.92 : x
  2. Step 2: Convert to fraction form
    2,221.12/3,330.48 = 1,853.92/x
  3. Step 3: Cross multiply
    2,221.12x = 3,330.48 × 1,853.92
  4. Step 4: Simplify right side
    2,221.12x = 6,174,443.48
  5. Step 5: Solve for x
    x = 6,174,443.48/2,221.12
  6. Step 6: Final answer
    x = 2,779.88

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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.