Home / 2,624.96-3,939.36-1,257.92

Finding the Fourth Proportional to 2,624.96, 3,939.36 and 1,257.92

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Solution

The fourth proportional to 2,624.96, 3,939.36 and 1,257.92 is: 1,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.96 : 3,939.36 = 1,257.92 : x
  2. Step 2: Convert to fraction form
    2,624.96/3,939.36 = 1,257.92/x
  3. Step 3: Cross multiply
    2,624.96x = 3,939.36 × 1,257.92
  4. Step 4: Simplify right side
    2,624.96x = 4,955,399.73
  5. Step 5: Solve for x
    x = 4,955,399.73/2,624.96
  6. Step 6: Final answer
    x = 1,887.80

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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.