Home / 2,270.18-3,132.80-1,338.50

Finding the Fourth Proportional to 2,270.18, 3,132.80 and 1,338.50

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Solution

The fourth proportional to 2,270.18, 3,132.80 and 1,338.50 is: 1,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.18 : 3,132.80 = 1,338.50 : x
  2. Step 2: Convert to fraction form
    2,270.18/3,132.80 = 1,338.50/x
  3. Step 3: Cross multiply
    2,270.18x = 3,132.80 × 1,338.50
  4. Step 4: Simplify right side
    2,270.18x = 4,193,252.80
  5. Step 5: Solve for x
    x = 4,193,252.80/2,270.18
  6. Step 6: Final answer
    x = 1,847.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.