Home / 7,845.76-11,769.91-2,579.24

Finding the Fourth Proportional to 7,845.76, 11,769.91 and 2,579.24

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Solution

The fourth proportional to 7,845.76, 11,769.91 and 2,579.24 is: 3,869.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.76 : 11,769.91 = 2,579.24 : x
  2. Step 2: Convert to fraction form
    7,845.76/11,769.91 = 2,579.24/x
  3. Step 3: Cross multiply
    7,845.76x = 11,769.91 × 2,579.24
  4. Step 4: Simplify right side
    7,845.76x = 30,357,445.65
  5. Step 5: Solve for x
    x = 30,357,445.65/7,845.76
  6. Step 6: Final answer
    x = 3,869.28

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1.5x scale

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.