Home / 5,104.40-7,031.16-3,609.68

Finding the Fourth Proportional to 5,104.40, 7,031.16 and 3,609.68

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Solution

The fourth proportional to 5,104.40, 7,031.16 and 3,609.68 is: 4,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,104.40 : 7,031.16 = 3,609.68 : x
  2. Step 2: Convert to fraction form
    5,104.40/7,031.16 = 3,609.68/x
  3. Step 3: Cross multiply
    5,104.40x = 7,031.16 × 3,609.68
  4. Step 4: Simplify right side
    5,104.40x = 25,380,237.63
  5. Step 5: Solve for x
    x = 25,380,237.63/5,104.40
  6. Step 6: Final answer
    x = 4,972.23

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1.5x scale

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.