Home / 5,221.81-7,832.85-1,759.06

Finding the Fourth Proportional to 5,221.81, 7,832.85 and 1,759.06

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Solution

The fourth proportional to 5,221.81, 7,832.85 and 1,759.06 is: 2,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.81 : 7,832.85 = 1,759.06 : x
  2. Step 2: Convert to fraction form
    5,221.81/7,832.85 = 1,759.06/x
  3. Step 3: Cross multiply
    5,221.81x = 7,832.85 × 1,759.06
  4. Step 4: Simplify right side
    5,221.81x = 13,778,453.12
  5. Step 5: Solve for x
    x = 13,778,453.12/5,221.81
  6. Step 6: Final answer
    x = 2,638.64

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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.