Home / 1,179.36-1,771.74-974.72

Finding the Fourth Proportional to 1,179.36, 1,771.74 and 974.72

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Solution

The fourth proportional to 1,179.36, 1,771.74 and 974.72 is: 1,464.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.36 : 1,771.74 = 974.72 : x
  2. Step 2: Convert to fraction form
    1,179.36/1,771.74 = 974.72/x
  3. Step 3: Cross multiply
    1,179.36x = 1,771.74 × 974.72
  4. Step 4: Simplify right side
    1,179.36x = 1,726,950.41
  5. Step 5: Solve for x
    x = 1,726,950.41/1,179.36
  6. Step 6: Final answer
    x = 1,464.31

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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.