Home / 7,145.99-10,719.69-2,465.37

Finding the Fourth Proportional to 7,145.99, 10,719.69 and 2,465.37

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Solution

The fourth proportional to 7,145.99, 10,719.69 and 2,465.37 is: 3,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.99 : 10,719.69 = 2,465.37 : x
  2. Step 2: Convert to fraction form
    7,145.99/10,719.69 = 2,465.37/x
  3. Step 3: Cross multiply
    7,145.99x = 10,719.69 × 2,465.37
  4. Step 4: Simplify right side
    7,145.99x = 26,428,002.14
  5. Step 5: Solve for x
    x = 26,428,002.14/7,145.99
  6. Step 6: Final answer
    x = 3,698.30

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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.