Home / 4,719.88-7,079.62-1,209.85

Finding the Fourth Proportional to 4,719.88, 7,079.62 and 1,209.85

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Solution

The fourth proportional to 4,719.88, 7,079.62 and 1,209.85 is: 1,814.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.88 : 7,079.62 = 1,209.85 : x
  2. Step 2: Convert to fraction form
    4,719.88/7,079.62 = 1,209.85/x
  3. Step 3: Cross multiply
    4,719.88x = 7,079.62 × 1,209.85
  4. Step 4: Simplify right side
    4,719.88x = 8,565,278.26
  5. Step 5: Solve for x
    x = 8,565,278.26/4,719.88
  6. Step 6: Final answer
    x = 1,814.72

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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.