Home / 4,257.70-5,877.21-2,489.86

Finding the Fourth Proportional to 4,257.70, 5,877.21 and 2,489.86

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Solution

The fourth proportional to 4,257.70, 5,877.21 and 2,489.86 is: 3,436.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257.70 : 5,877.21 = 2,489.86 : x
  2. Step 2: Convert to fraction form
    4,257.70/5,877.21 = 2,489.86/x
  3. Step 3: Cross multiply
    4,257.70x = 5,877.21 × 2,489.86
  4. Step 4: Simplify right side
    4,257.70x = 14,633,430.09
  5. Step 5: Solve for x
    x = 14,633,430.09/4,257.70
  6. Step 6: Final answer
    x = 3,436.93

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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.