Home / 2,529.60-3,790.80-1,759.20

Finding the Fourth Proportional to 2,529.60, 3,790.80 and 1,759.20

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Solution

The fourth proportional to 2,529.60, 3,790.80 and 1,759.20 is: 2,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,529.60 : 3,790.80 = 1,759.20 : x
  2. Step 2: Convert to fraction form
    2,529.60/3,790.80 = 1,759.20/x
  3. Step 3: Cross multiply
    2,529.60x = 3,790.80 × 1,759.20
  4. Step 4: Simplify right side
    2,529.60x = 6,668,775.36
  5. Step 5: Solve for x
    x = 6,668,775.36/2,529.60
  6. Step 6: Final answer
    x = 2,636.30

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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.