Home / 7,389.86-11,081.55-2,769.62

Finding the Fourth Proportional to 7,389.86, 11,081.55 and 2,769.62

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Solution

The fourth proportional to 7,389.86, 11,081.55 and 2,769.62 is: 4,153.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.86 : 11,081.55 = 2,769.62 : x
  2. Step 2: Convert to fraction form
    7,389.86/11,081.55 = 2,769.62/x
  3. Step 3: Cross multiply
    7,389.86x = 11,081.55 × 2,769.62
  4. Step 4: Simplify right side
    7,389.86x = 30,691,682.51
  5. Step 5: Solve for x
    x = 30,691,682.51/7,389.86
  6. Step 6: Final answer
    x = 4,153.22

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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.