Home / 4,719.67-7,079.76-1,209.70

Finding the Fourth Proportional to 4,719.67, 7,079.76 and 1,209.70

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Solution

The fourth proportional to 4,719.67, 7,079.76 and 1,209.70 is: 1,814.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.67 : 7,079.76 = 1,209.70 : x
  2. Step 2: Convert to fraction form
    4,719.67/7,079.76 = 1,209.70/x
  3. Step 3: Cross multiply
    4,719.67x = 7,079.76 × 1,209.70
  4. Step 4: Simplify right side
    4,719.67x = 8,564,379.62
  5. Step 5: Solve for x
    x = 8,564,379.62/4,719.67
  6. Step 6: Final answer
    x = 1,814.62

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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.