Home / 1,317.59-1,975.57-451.97

Finding the Fourth Proportional to 1,317.59, 1,975.57 and 451.97

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Solution

The fourth proportional to 1,317.59, 1,975.57 and 451.97 is: 677.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.59 : 1,975.57 = 451.97 : x
  2. Step 2: Convert to fraction form
    1,317.59/1,975.57 = 451.97/x
  3. Step 3: Cross multiply
    1,317.59x = 1,975.57 × 451.97
  4. Step 4: Simplify right side
    1,317.59x = 892,898.37
  5. Step 5: Solve for x
    x = 892,898.37/1,317.59
  6. Step 6: Final answer
    x = 677.68

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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.