Home / 6,455-9,685.74-2,993.24

Finding the Fourth Proportional to 6,455, 9,685.74 and 2,993.24

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Solution

The fourth proportional to 6,455, 9,685.74 and 2,993.24 is: 4,491.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455 : 9,685.74 = 2,993.24 : x
  2. Step 2: Convert to fraction form
    6,455/9,685.74 = 2,993.24/x
  3. Step 3: Cross multiply
    6,455x = 9,685.74 × 2,993.24
  4. Step 4: Simplify right side
    6,455x = 28,991,744.40
  5. Step 5: Solve for x
    x = 28,991,744.40/6,455
  6. Step 6: Final answer
    x = 4,491.36

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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.