Home / 6,391.40-9,588.53-1,949.45

Finding the Fourth Proportional to 6,391.40, 9,588.53 and 1,949.45

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Solution

The fourth proportional to 6,391.40, 9,588.53 and 1,949.45 is: 2,924.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391.40 : 9,588.53 = 1,949.45 : x
  2. Step 2: Convert to fraction form
    6,391.40/9,588.53 = 1,949.45/x
  3. Step 3: Cross multiply
    6,391.40x = 9,588.53 × 1,949.45
  4. Step 4: Simplify right side
    6,391.40x = 18,692,388.65
  5. Step 5: Solve for x
    x = 18,692,388.65/6,391.40
  6. Step 6: Final answer
    x = 2,924.62

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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.