Home / 3,130.43-4,319.99-1,804.11

Finding the Fourth Proportional to 3,130.43, 4,319.99 and 1,804.11

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Solution

The fourth proportional to 3,130.43, 4,319.99 and 1,804.11 is: 2,489.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.43 : 4,319.99 = 1,804.11 : x
  2. Step 2: Convert to fraction form
    3,130.43/4,319.99 = 1,804.11/x
  3. Step 3: Cross multiply
    3,130.43x = 4,319.99 × 1,804.11
  4. Step 4: Simplify right side
    3,130.43x = 7,793,728.14
  5. Step 5: Solve for x
    x = 7,793,728.14/3,130.43
  6. Step 6: Final answer
    x = 2,489.67

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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.