Home / 1,104.21-1,659.39-1,031.08

Finding the Fourth Proportional to 1,104.21, 1,659.39 and 1,031.08

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Solution

The fourth proportional to 1,104.21, 1,659.39 and 1,031.08 is: 1,549.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.21 : 1,659.39 = 1,031.08 : x
  2. Step 2: Convert to fraction form
    1,104.21/1,659.39 = 1,031.08/x
  3. Step 3: Cross multiply
    1,104.21x = 1,659.39 × 1,031.08
  4. Step 4: Simplify right side
    1,104.21x = 1,710,958.94
  5. Step 5: Solve for x
    x = 1,710,958.94/1,104.21
  6. Step 6: Final answer
    x = 1,549.49

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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.