Home / 3,709.36-5,116.80-2,647.36

Finding the Fourth Proportional to 3,709.36, 5,116.80 and 2,647.36

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Solution

The fourth proportional to 3,709.36, 5,116.80 and 2,647.36 is: 3,651.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.36 : 5,116.80 = 2,647.36 : x
  2. Step 2: Convert to fraction form
    3,709.36/5,116.80 = 2,647.36/x
  3. Step 3: Cross multiply
    3,709.36x = 5,116.80 × 2,647.36
  4. Step 4: Simplify right side
    3,709.36x = 13,546,011.65
  5. Step 5: Solve for x
    x = 13,546,011.65/3,709.36
  6. Step 6: Final answer
    x = 3,651.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.