Home / 2,318.64-3,474.32-1,277.76

Finding the Fourth Proportional to 2,318.64, 3,474.32 and 1,277.76

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Solution

The fourth proportional to 2,318.64, 3,474.32 and 1,277.76 is: 1,914.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.64 : 3,474.32 = 1,277.76 : x
  2. Step 2: Convert to fraction form
    2,318.64/3,474.32 = 1,277.76/x
  3. Step 3: Cross multiply
    2,318.64x = 3,474.32 × 1,277.76
  4. Step 4: Simplify right side
    2,318.64x = 4,439,347.12
  5. Step 5: Solve for x
    x = 4,439,347.12/2,318.64
  6. Step 6: Final answer
    x = 1,914.63

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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.