Home / 5,343.89-8,015.45-1,645.73

Finding the Fourth Proportional to 5,343.89, 8,015.45 and 1,645.73

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Solution

The fourth proportional to 5,343.89, 8,015.45 and 1,645.73 is: 2,468.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.89 : 8,015.45 = 1,645.73 : x
  2. Step 2: Convert to fraction form
    5,343.89/8,015.45 = 1,645.73/x
  3. Step 3: Cross multiply
    5,343.89x = 8,015.45 × 1,645.73
  4. Step 4: Simplify right side
    5,343.89x = 13,191,301.28
  5. Step 5: Solve for x
    x = 13,191,301.28/5,343.89
  6. Step 6: Final answer
    x = 2,468.48

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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.