Home / 4,206.66-6,309.60-1,284.78

Finding the Fourth Proportional to 4,206.66, 6,309.60 and 1,284.78

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Solution

The fourth proportional to 4,206.66, 6,309.60 and 1,284.78 is: 1,927.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,206.66 : 6,309.60 = 1,284.78 : x
  2. Step 2: Convert to fraction form
    4,206.66/6,309.60 = 1,284.78/x
  3. Step 3: Cross multiply
    4,206.66x = 6,309.60 × 1,284.78
  4. Step 4: Simplify right side
    4,206.66x = 8,106,447.89
  5. Step 5: Solve for x
    x = 8,106,447.89/4,206.66
  6. Step 6: Final answer
    x = 1,927.05

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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.