Home / 4,278.12-6,418.14-1,356.16

Finding the Fourth Proportional to 4,278.12, 6,418.14 and 1,356.16

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Solution

The fourth proportional to 4,278.12, 6,418.14 and 1,356.16 is: 2,034.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.12 : 6,418.14 = 1,356.16 : x
  2. Step 2: Convert to fraction form
    4,278.12/6,418.14 = 1,356.16/x
  3. Step 3: Cross multiply
    4,278.12x = 6,418.14 × 1,356.16
  4. Step 4: Simplify right side
    4,278.12x = 8,704,024.74
  5. Step 5: Solve for x
    x = 8,704,024.74/4,278.12
  6. Step 6: Final answer
    x = 2,034.54

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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.