Home / 7,718.31-11,578.05-3,036.06

Finding the Fourth Proportional to 7,718.31, 11,578.05 and 3,036.06

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Solution

The fourth proportional to 7,718.31, 11,578.05 and 3,036.06 is: 4,554.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.31 : 11,578.05 = 3,036.06 : x
  2. Step 2: Convert to fraction form
    7,718.31/11,578.05 = 3,036.06/x
  3. Step 3: Cross multiply
    7,718.31x = 11,578.05 × 3,036.06
  4. Step 4: Simplify right side
    7,718.31x = 35,151,654.48
  5. Step 5: Solve for x
    x = 35,151,654.48/7,718.31
  6. Step 6: Final answer
    x = 4,554.32

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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.