Home / 5,108.22-7,663.53-1,645.34

Finding the Fourth Proportional to 5,108.22, 7,663.53 and 1,645.34

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Solution

The fourth proportional to 5,108.22, 7,663.53 and 1,645.34 is: 2,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.22 : 7,663.53 = 1,645.34 : x
  2. Step 2: Convert to fraction form
    5,108.22/7,663.53 = 1,645.34/x
  3. Step 3: Cross multiply
    5,108.22x = 7,663.53 × 1,645.34
  4. Step 4: Simplify right side
    5,108.22x = 12,609,112.45
  5. Step 5: Solve for x
    x = 12,609,112.45/5,108.22
  6. Step 6: Final answer
    x = 2,468.40

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1.5x scale

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.