Home / 7,905.41-11,864.23-2,979.53

Finding the Fourth Proportional to 7,905.41, 11,864.23 and 2,979.53

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Solution

The fourth proportional to 7,905.41, 11,864.23 and 2,979.53 is: 4,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.41 : 11,864.23 = 2,979.53 : x
  2. Step 2: Convert to fraction form
    7,905.41/11,864.23 = 2,979.53/x
  3. Step 3: Cross multiply
    7,905.41x = 11,864.23 × 2,979.53
  4. Step 4: Simplify right side
    7,905.41x = 35,349,762.44
  5. Step 5: Solve for x
    x = 35,349,762.44/7,905.41
  6. Step 6: Final answer
    x = 4,471.59

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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.