Home / 4,212.60-6,320.11-1,291.33

Finding the Fourth Proportional to 4,212.60, 6,320.11 and 1,291.33

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Solution

The fourth proportional to 4,212.60, 6,320.11 and 1,291.33 is: 1,937.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.60 : 6,320.11 = 1,291.33 : x
  2. Step 2: Convert to fraction form
    4,212.60/6,320.11 = 1,291.33/x
  3. Step 3: Cross multiply
    4,212.60x = 6,320.11 × 1,291.33
  4. Step 4: Simplify right side
    4,212.60x = 8,161,347.65
  5. Step 5: Solve for x
    x = 8,161,347.65/4,212.60
  6. Step 6: Final answer
    x = 1,937.37

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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.