Home / 3,254.33-4,490.70-1,909.80

Finding the Fourth Proportional to 3,254.33, 4,490.70 and 1,909.80

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Solution

The fourth proportional to 3,254.33, 4,490.70 and 1,909.80 is: 2,635.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,254.33 : 4,490.70 = 1,909.80 : x
  2. Step 2: Convert to fraction form
    3,254.33/4,490.70 = 1,909.80/x
  3. Step 3: Cross multiply
    3,254.33x = 4,490.70 × 1,909.80
  4. Step 4: Simplify right side
    3,254.33x = 8,576,306.86
  5. Step 5: Solve for x
    x = 8,576,306.86/3,254.33
  6. Step 6: Final answer
    x = 2,635.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.