Home / 1,173.21-1,619.13-675.87

Finding the Fourth Proportional to 1,173.21, 1,619.13 and 675.87

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Solution

The fourth proportional to 1,173.21, 1,619.13 and 675.87 is: 932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.21 : 1,619.13 = 675.87 : x
  2. Step 2: Convert to fraction form
    1,173.21/1,619.13 = 675.87/x
  3. Step 3: Cross multiply
    1,173.21x = 1,619.13 × 675.87
  4. Step 4: Simplify right side
    1,173.21x = 1,094,313.30
  5. Step 5: Solve for x
    x = 1,094,313.30/1,173.21
  6. Step 6: Final answer
    x = 932.76

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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.