Home / 7,286.28-10,929.42-2,904.72

Finding the Fourth Proportional to 7,286.28, 10,929.42 and 2,904.72

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Solution

The fourth proportional to 7,286.28, 10,929.42 and 2,904.72 is: 4,357.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.28 : 10,929.42 = 2,904.72 : x
  2. Step 2: Convert to fraction form
    7,286.28/10,929.42 = 2,904.72/x
  3. Step 3: Cross multiply
    7,286.28x = 10,929.42 × 2,904.72
  4. Step 4: Simplify right side
    7,286.28x = 31,746,904.86
  5. Step 5: Solve for x
    x = 31,746,904.86/7,286.28
  6. Step 6: Final answer
    x = 4,357.08

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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.