Home / 2,624.50-3,620.19-2,101.78

Finding the Fourth Proportional to 2,624.50, 3,620.19 and 2,101.78

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Solution

The fourth proportional to 2,624.50, 3,620.19 and 2,101.78 is: 2,899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.50 : 3,620.19 = 2,101.78 : x
  2. Step 2: Convert to fraction form
    2,624.50/3,620.19 = 2,101.78/x
  3. Step 3: Cross multiply
    2,624.50x = 3,620.19 × 2,101.78
  4. Step 4: Simplify right side
    2,624.50x = 7,608,842.94
  5. Step 5: Solve for x
    x = 7,608,842.94/2,624.50
  6. Step 6: Final answer
    x = 2,899.16

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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.