Home / 2,763.60-4,145.40-2,399.10

Finding the Fourth Proportional to 2,763.60, 4,145.40 and 2,399.10

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Solution

The fourth proportional to 2,763.60, 4,145.40 and 2,399.10 is: 3,598.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.60 : 4,145.40 = 2,399.10 : x
  2. Step 2: Convert to fraction form
    2,763.60/4,145.40 = 2,399.10/x
  3. Step 3: Cross multiply
    2,763.60x = 4,145.40 × 2,399.10
  4. Step 4: Simplify right side
    2,763.60x = 9,945,229.14
  5. Step 5: Solve for x
    x = 9,945,229.14/2,763.60
  6. Step 6: Final answer
    x = 3,598.65

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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.