Home / 3,157.13-4,736.67-1,309.11

Finding the Fourth Proportional to 3,157.13, 4,736.67 and 1,309.11

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Solution

The fourth proportional to 3,157.13, 4,736.67 and 1,309.11 is: 1,964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.13 : 4,736.67 = 1,309.11 : x
  2. Step 2: Convert to fraction form
    3,157.13/4,736.67 = 1,309.11/x
  3. Step 3: Cross multiply
    3,157.13x = 4,736.67 × 1,309.11
  4. Step 4: Simplify right side
    3,157.13x = 6,200,822.06
  5. Step 5: Solve for x
    x = 6,200,822.06/3,157.13
  6. Step 6: Final answer
    x = 1,964.07

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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.