Home / 4,277.09-6,407.10-2,811.80

Finding the Fourth Proportional to 4,277.09, 6,407.10 and 2,811.80

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Solution

The fourth proportional to 4,277.09, 6,407.10 and 2,811.80 is: 4,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,277.09 : 6,407.10 = 2,811.80 : x
  2. Step 2: Convert to fraction form
    4,277.09/6,407.10 = 2,811.80/x
  3. Step 3: Cross multiply
    4,277.09x = 6,407.10 × 2,811.80
  4. Step 4: Simplify right side
    4,277.09x = 18,015,483.78
  5. Step 5: Solve for x
    x = 18,015,483.78/4,277.09
  6. Step 6: Final answer
    x = 4,212.09

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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.