Home / 7,803.28-11,704.50-2,870.68

Finding the Fourth Proportional to 7,803.28, 11,704.50 and 2,870.68

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Solution

The fourth proportional to 7,803.28, 11,704.50 and 2,870.68 is: 4,305.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.28 : 11,704.50 = 2,870.68 : x
  2. Step 2: Convert to fraction form
    7,803.28/11,704.50 = 2,870.68/x
  3. Step 3: Cross multiply
    7,803.28x = 11,704.50 × 2,870.68
  4. Step 4: Simplify right side
    7,803.28x = 33,599,874.06
  5. Step 5: Solve for x
    x = 33,599,874.06/7,803.28
  6. Step 6: Final answer
    x = 4,305.87

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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.