Home / 4,291.20-6,434.88-1,212.48

Finding the Fourth Proportional to 4,291.20, 6,434.88 and 1,212.48

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Solution

The fourth proportional to 4,291.20, 6,434.88 and 1,212.48 is: 1,818.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.20 : 6,434.88 = 1,212.48 : x
  2. Step 2: Convert to fraction form
    4,291.20/6,434.88 = 1,212.48/x
  3. Step 3: Cross multiply
    4,291.20x = 6,434.88 × 1,212.48
  4. Step 4: Simplify right side
    4,291.20x = 7,802,163.30
  5. Step 5: Solve for x
    x = 7,802,163.30/4,291.20
  6. Step 6: Final answer
    x = 1,818.18

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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.