Home / 5,419.00-8,127.66-1,720.75

Finding the Fourth Proportional to 5,419.00, 8,127.66 and 1,720.75

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Solution

The fourth proportional to 5,419.00, 8,127.66 and 1,720.75 is: 2,580.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.00 : 8,127.66 = 1,720.75 : x
  2. Step 2: Convert to fraction form
    5,419.00/8,127.66 = 1,720.75/x
  3. Step 3: Cross multiply
    5,419.00x = 8,127.66 × 1,720.75
  4. Step 4: Simplify right side
    5,419.00x = 13,985,634.61
  5. Step 5: Solve for x
    x = 13,985,634.61/5,419.00
  6. Step 6: Final answer
    x = 2,580.85

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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.