Home / 2,436.16-3,359.72-1,911.28

Finding the Fourth Proportional to 2,436.16, 3,359.72 and 1,911.28

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Solution

The fourth proportional to 2,436.16, 3,359.72 and 1,911.28 is: 2,635.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,436.16 : 3,359.72 = 1,911.28 : x
  2. Step 2: Convert to fraction form
    2,436.16/3,359.72 = 1,911.28/x
  3. Step 3: Cross multiply
    2,436.16x = 3,359.72 × 1,911.28
  4. Step 4: Simplify right side
    2,436.16x = 6,421,365.64
  5. Step 5: Solve for x
    x = 6,421,365.64/2,436.16
  6. Step 6: Final answer
    x = 2,635.86

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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.