Home / 2,318.22-3,477.74-1,277.78

Finding the Fourth Proportional to 2,318.22, 3,477.74 and 1,277.78

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Solution

The fourth proportional to 2,318.22, 3,477.74 and 1,277.78 is: 1,916.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.22 : 3,477.74 = 1,277.78 : x
  2. Step 2: Convert to fraction form
    2,318.22/3,477.74 = 1,277.78/x
  3. Step 3: Cross multiply
    2,318.22x = 3,477.74 × 1,277.78
  4. Step 4: Simplify right side
    2,318.22x = 4,443,762.84
  5. Step 5: Solve for x
    x = 4,443,762.84/2,318.22
  6. Step 6: Final answer
    x = 1,916.89

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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.