Home / 9,121.48-13,684.14-2,965

Finding the Fourth Proportional to 9,121.48, 13,684.14 and 2,965

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Solution

The fourth proportional to 9,121.48, 13,684.14 and 2,965 is: 4,448.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.48 : 13,684.14 = 2,965 : x
  2. Step 2: Convert to fraction form
    9,121.48/13,684.14 = 2,965/x
  3. Step 3: Cross multiply
    9,121.48x = 13,684.14 × 2,965
  4. Step 4: Simplify right side
    9,121.48x = 40,573,475.10
  5. Step 5: Solve for x
    x = 40,573,475.10/9,121.48
  6. Step 6: Final answer
    x = 4,448.12

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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.