Home / 2,579.40-3,869.10-2,563.20

Finding the Fourth Proportional to 2,579.40, 3,869.10 and 2,563.20

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Solution

The fourth proportional to 2,579.40, 3,869.10 and 2,563.20 is: 3,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.40 : 3,869.10 = 2,563.20 : x
  2. Step 2: Convert to fraction form
    2,579.40/3,869.10 = 2,563.20/x
  3. Step 3: Cross multiply
    2,579.40x = 3,869.10 × 2,563.20
  4. Step 4: Simplify right side
    2,579.40x = 9,917,277.12
  5. Step 5: Solve for x
    x = 9,917,277.12/2,579.40
  6. Step 6: Final answer
    x = 3,844.80

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Similar ratio
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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.