Home / 7,952.16-11,930.40-2,405.28

Finding the Fourth Proportional to 7,952.16, 11,930.40 and 2,405.28

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Solution

The fourth proportional to 7,952.16, 11,930.40 and 2,405.28 is: 3,608.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,952.16 : 11,930.40 = 2,405.28 : x
  2. Step 2: Convert to fraction form
    7,952.16/11,930.40 = 2,405.28/x
  3. Step 3: Cross multiply
    7,952.16x = 11,930.40 × 2,405.28
  4. Step 4: Simplify right side
    7,952.16x = 28,695,952.51
  5. Step 5: Solve for x
    x = 28,695,952.51/7,952.16
  6. Step 6: Final answer
    x = 3,608.57

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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.