Home / 7,145.80-10,719.96-2,465.44

Finding the Fourth Proportional to 7,145.80, 10,719.96 and 2,465.44

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Solution

The fourth proportional to 7,145.80, 10,719.96 and 2,465.44 is: 3,698.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.80 : 10,719.96 = 2,465.44 : x
  2. Step 2: Convert to fraction form
    7,145.80/10,719.96 = 2,465.44/x
  3. Step 3: Cross multiply
    7,145.80x = 10,719.96 × 2,465.44
  4. Step 4: Simplify right side
    7,145.80x = 26,429,418.18
  5. Step 5: Solve for x
    x = 26,429,418.18/7,145.80
  6. Step 6: Final answer
    x = 3,698.59

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1.5x scale

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.