Home / 4,278.95-6,418.63-1,356.98

Finding the Fourth Proportional to 4,278.95, 6,418.63 and 1,356.98

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Solution

The fourth proportional to 4,278.95, 6,418.63 and 1,356.98 is: 2,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.95 : 6,418.63 = 1,356.98 : x
  2. Step 2: Convert to fraction form
    4,278.95/6,418.63 = 1,356.98/x
  3. Step 3: Cross multiply
    4,278.95x = 6,418.63 × 1,356.98
  4. Step 4: Simplify right side
    4,278.95x = 8,709,952.54
  5. Step 5: Solve for x
    x = 8,709,952.54/4,278.95
  6. Step 6: Final answer
    x = 2,035.54

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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.