Home / 1,571.14-2,357.25-985.44

Finding the Fourth Proportional to 1,571.14, 2,357.25 and 985.44

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Solution

The fourth proportional to 1,571.14, 2,357.25 and 985.44 is: 1,478.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.14 : 2,357.25 = 985.44 : x
  2. Step 2: Convert to fraction form
    1,571.14/2,357.25 = 985.44/x
  3. Step 3: Cross multiply
    1,571.14x = 2,357.25 × 985.44
  4. Step 4: Simplify right side
    1,571.14x = 2,322,916.65
  5. Step 5: Solve for x
    x = 2,322,916.65/1,571.14
  6. Step 6: Final answer
    x = 1,478.49

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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.