Home / 6,280.13-9,419.90-2,118.76

Finding the Fourth Proportional to 6,280.13, 9,419.90 and 2,118.76

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Solution

The fourth proportional to 6,280.13, 9,419.90 and 2,118.76 is: 3,178.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.13 : 9,419.90 = 2,118.76 : x
  2. Step 2: Convert to fraction form
    6,280.13/9,419.90 = 2,118.76/x
  3. Step 3: Cross multiply
    6,280.13x = 9,419.90 × 2,118.76
  4. Step 4: Simplify right side
    6,280.13x = 19,958,473.18
  5. Step 5: Solve for x
    x = 19,958,473.18/6,280.13
  6. Step 6: Final answer
    x = 3,178.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.