Home / 1,313.06-1,814.64-1,076.64

Finding the Fourth Proportional to 1,313.06, 1,814.64 and 1,076.64

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Solution

The fourth proportional to 1,313.06, 1,814.64 and 1,076.64 is: 1,487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313.06 : 1,814.64 = 1,076.64 : x
  2. Step 2: Convert to fraction form
    1,313.06/1,814.64 = 1,076.64/x
  3. Step 3: Cross multiply
    1,313.06x = 1,814.64 × 1,076.64
  4. Step 4: Simplify right side
    1,313.06x = 1,953,713.37
  5. Step 5: Solve for x
    x = 1,953,713.37/1,313.06
  6. Step 6: Final answer
    x = 1,487.91

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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.