Home / 7,145.40-10,718.82-2,464.80

Finding the Fourth Proportional to 7,145.40, 10,718.82 and 2,464.80

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Solution

The fourth proportional to 7,145.40, 10,718.82 and 2,464.80 is: 3,697.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.40 : 10,718.82 = 2,464.80 : x
  2. Step 2: Convert to fraction form
    7,145.40/10,718.82 = 2,464.80/x
  3. Step 3: Cross multiply
    7,145.40x = 10,718.82 × 2,464.80
  4. Step 4: Simplify right side
    7,145.40x = 26,419,747.54
  5. Step 5: Solve for x
    x = 26,419,747.54/7,145.40
  6. Step 6: Final answer
    x = 3,697.45

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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.