Home / 2,509.07-3,763.40-1,338.75

Finding the Fourth Proportional to 2,509.07, 3,763.40 and 1,338.75

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Solution

The fourth proportional to 2,509.07, 3,763.40 and 1,338.75 is: 2,008.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.07 : 3,763.40 = 1,338.75 : x
  2. Step 2: Convert to fraction form
    2,509.07/3,763.40 = 1,338.75/x
  3. Step 3: Cross multiply
    2,509.07x = 3,763.40 × 1,338.75
  4. Step 4: Simplify right side
    2,509.07x = 5,038,245.06
  5. Step 5: Solve for x
    x = 5,038,245.06/2,509.07
  6. Step 6: Final answer
    x = 2,008.02

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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.