Home / 3,106.72-4,660.62-1,807.84

Finding the Fourth Proportional to 3,106.72, 4,660.62 and 1,807.84

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Solution

The fourth proportional to 3,106.72, 4,660.62 and 1,807.84 is: 2,712.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.72 : 4,660.62 = 1,807.84 : x
  2. Step 2: Convert to fraction form
    3,106.72/4,660.62 = 1,807.84/x
  3. Step 3: Cross multiply
    3,106.72x = 4,660.62 × 1,807.84
  4. Step 4: Simplify right side
    3,106.72x = 8,425,655.26
  5. Step 5: Solve for x
    x = 8,425,655.26/3,106.72
  6. Step 6: Final answer
    x = 2,712.07

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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.