Home / 5,098.40-7,645.80-1,811.60

Finding the Fourth Proportional to 5,098.40, 7,645.80 and 1,811.60

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Solution

The fourth proportional to 5,098.40, 7,645.80 and 1,811.60 is: 2,716.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,098.40 : 7,645.80 = 1,811.60 : x
  2. Step 2: Convert to fraction form
    5,098.40/7,645.80 = 1,811.60/x
  3. Step 3: Cross multiply
    5,098.40x = 7,645.80 × 1,811.60
  4. Step 4: Simplify right side
    5,098.40x = 13,851,131.28
  5. Step 5: Solve for x
    x = 13,851,131.28/5,098.40
  6. Step 6: Final answer
    x = 2,716.76

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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.