Home / 7,045.23-9,722.43-3,815.09

Finding the Fourth Proportional to 7,045.23, 9,722.43 and 3,815.09

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Solution

The fourth proportional to 7,045.23, 9,722.43 and 3,815.09 is: 5,264.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.23 : 9,722.43 = 3,815.09 : x
  2. Step 2: Convert to fraction form
    7,045.23/9,722.43 = 3,815.09/x
  3. Step 3: Cross multiply
    7,045.23x = 9,722.43 × 3,815.09
  4. Step 4: Simplify right side
    7,045.23x = 37,091,896.86
  5. Step 5: Solve for x
    x = 37,091,896.86/7,045.23
  6. Step 6: Final answer
    x = 5,264.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.