Home / 3,156.30-4,736.07-1,308.96

Finding the Fourth Proportional to 3,156.30, 4,736.07 and 1,308.96

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Solution

The fourth proportional to 3,156.30, 4,736.07 and 1,308.96 is: 1,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.30 : 4,736.07 = 1,308.96 : x
  2. Step 2: Convert to fraction form
    3,156.30/4,736.07 = 1,308.96/x
  3. Step 3: Cross multiply
    3,156.30x = 4,736.07 × 1,308.96
  4. Step 4: Simplify right side
    3,156.30x = 6,199,326.19
  5. Step 5: Solve for x
    x = 6,199,326.19/3,156.30
  6. Step 6: Final answer
    x = 1,964.11

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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.