Home / 4,278.21-6,416.06-1,812.98

Finding the Fourth Proportional to 4,278.21, 6,416.06 and 1,812.98

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Solution

The fourth proportional to 4,278.21, 6,416.06 and 1,812.98 is: 2,718.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.21 : 6,416.06 = 1,812.98 : x
  2. Step 2: Convert to fraction form
    4,278.21/6,416.06 = 1,812.98/x
  3. Step 3: Cross multiply
    4,278.21x = 6,416.06 × 1,812.98
  4. Step 4: Simplify right side
    4,278.21x = 11,632,147.31
  5. Step 5: Solve for x
    x = 11,632,147.31/4,278.21
  6. Step 6: Final answer
    x = 2,718.93

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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.