Home / 7,146.27-10,720.04-2,465.78

Finding the Fourth Proportional to 7,146.27, 10,720.04 and 2,465.78

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Solution

The fourth proportional to 7,146.27, 10,720.04 and 2,465.78 is: 3,698.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.27 : 10,720.04 = 2,465.78 : x
  2. Step 2: Convert to fraction form
    7,146.27/10,720.04 = 2,465.78/x
  3. Step 3: Cross multiply
    7,146.27x = 10,720.04 × 2,465.78
  4. Step 4: Simplify right side
    7,146.27x = 26,433,194.30
  5. Step 5: Solve for x
    x = 26,433,194.30/7,146.27
  6. Step 6: Final answer
    x = 3,698.88

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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.