Home / 2,814.30-4,221.45-2,490.30

Finding the Fourth Proportional to 2,814.30, 4,221.45 and 2,490.30

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Solution

The fourth proportional to 2,814.30, 4,221.45 and 2,490.30 is: 3,735.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.30 : 4,221.45 = 2,490.30 : x
  2. Step 2: Convert to fraction form
    2,814.30/4,221.45 = 2,490.30/x
  3. Step 3: Cross multiply
    2,814.30x = 4,221.45 × 2,490.30
  4. Step 4: Simplify right side
    2,814.30x = 10,512,676.94
  5. Step 5: Solve for x
    x = 10,512,676.94/2,814.30
  6. Step 6: Final answer
    x = 3,735.45

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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.