Home / 2,814.38-4,221.36-1,102.91

Finding the Fourth Proportional to 2,814.38, 4,221.36 and 1,102.91

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Solution

The fourth proportional to 2,814.38, 4,221.36 and 1,102.91 is: 1,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.38 : 4,221.36 = 1,102.91 : x
  2. Step 2: Convert to fraction form
    2,814.38/4,221.36 = 1,102.91/x
  3. Step 3: Cross multiply
    2,814.38x = 4,221.36 × 1,102.91
  4. Step 4: Simplify right side
    2,814.38x = 4,655,780.16
  5. Step 5: Solve for x
    x = 4,655,780.16/2,814.38
  6. Step 6: Final answer
    x = 1,654.28

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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.