Home / 2,254.84-3,379.93-1,278.86

Finding the Fourth Proportional to 2,254.84, 3,379.93 and 1,278.86

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Solution

The fourth proportional to 2,254.84, 3,379.93 and 1,278.86 is: 1,916.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.84 : 3,379.93 = 1,278.86 : x
  2. Step 2: Convert to fraction form
    2,254.84/3,379.93 = 1,278.86/x
  3. Step 3: Cross multiply
    2,254.84x = 3,379.93 × 1,278.86
  4. Step 4: Simplify right side
    2,254.84x = 4,322,437.18
  5. Step 5: Solve for x
    x = 4,322,437.18/2,254.84
  6. Step 6: Final answer
    x = 1,916.96

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1.5x scale

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.