Home / 4,747.06-7,121.59-1,785.53

Finding the Fourth Proportional to 4,747.06, 7,121.59 and 1,785.53

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Solution

The fourth proportional to 4,747.06, 7,121.59 and 1,785.53 is: 2,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.06 : 7,121.59 = 1,785.53 : x
  2. Step 2: Convert to fraction form
    4,747.06/7,121.59 = 1,785.53/x
  3. Step 3: Cross multiply
    4,747.06x = 7,121.59 × 1,785.53
  4. Step 4: Simplify right side
    4,747.06x = 12,715,834.86
  5. Step 5: Solve for x
    x = 12,715,834.86/4,747.06
  6. Step 6: Final answer
    x = 2,678.68

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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.