Home / 4,214.40-6,318.55-1,291.11

Finding the Fourth Proportional to 4,214.40, 6,318.55 and 1,291.11

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Solution

The fourth proportional to 4,214.40, 6,318.55 and 1,291.11 is: 1,935.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,214.40 : 6,318.55 = 1,291.11 : x
  2. Step 2: Convert to fraction form
    4,214.40/6,318.55 = 1,291.11/x
  3. Step 3: Cross multiply
    4,214.40x = 6,318.55 × 1,291.11
  4. Step 4: Simplify right side
    4,214.40x = 8,157,943.09
  5. Step 5: Solve for x
    x = 8,157,943.09/4,214.40
  6. Step 6: Final answer
    x = 1,935.73

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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.