Home / 2,409.60-3,325.56-1,819.20

Finding the Fourth Proportional to 2,409.60, 3,325.56 and 1,819.20

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Solution

The fourth proportional to 2,409.60, 3,325.56 and 1,819.20 is: 2,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.60 : 3,325.56 = 1,819.20 : x
  2. Step 2: Convert to fraction form
    2,409.60/3,325.56 = 1,819.20/x
  3. Step 3: Cross multiply
    2,409.60x = 3,325.56 × 1,819.20
  4. Step 4: Simplify right side
    2,409.60x = 6,049,858.75
  5. Step 5: Solve for x
    x = 6,049,858.75/2,409.60
  6. Step 6: Final answer
    x = 2,510.73

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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.