Home / 2,927.51-4,388.38-1,172

Finding the Fourth Proportional to 2,927.51, 4,388.38 and 1,172

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Solution

The fourth proportional to 2,927.51, 4,388.38 and 1,172 is: 1,756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.51 : 4,388.38 = 1,172 : x
  2. Step 2: Convert to fraction form
    2,927.51/4,388.38 = 1,172/x
  3. Step 3: Cross multiply
    2,927.51x = 4,388.38 × 1,172
  4. Step 4: Simplify right side
    2,927.51x = 5,143,181.36
  5. Step 5: Solve for x
    x = 5,143,181.36/2,927.51
  6. Step 6: Final answer
    x = 1,756.85

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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.