Home / 2,439.40-3,659.30-1,052.80

Finding the Fourth Proportional to 2,439.40, 3,659.30 and 1,052.80

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Solution

The fourth proportional to 2,439.40, 3,659.30 and 1,052.80 is: 1,579.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.40 : 3,659.30 = 1,052.80 : x
  2. Step 2: Convert to fraction form
    2,439.40/3,659.30 = 1,052.80/x
  3. Step 3: Cross multiply
    2,439.40x = 3,659.30 × 1,052.80
  4. Step 4: Simplify right side
    2,439.40x = 3,852,511.04
  5. Step 5: Solve for x
    x = 3,852,511.04/2,439.40
  6. Step 6: Final answer
    x = 1,579.29

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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.