Home / 7,718.50-11,582.04-3,769.81

Finding the Fourth Proportional to 7,718.50, 11,582.04 and 3,769.81

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Solution

The fourth proportional to 7,718.50, 11,582.04 and 3,769.81 is: 5,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.50 : 11,582.04 = 3,769.81 : x
  2. Step 2: Convert to fraction form
    7,718.50/11,582.04 = 3,769.81/x
  3. Step 3: Cross multiply
    7,718.50x = 11,582.04 × 3,769.81
  4. Step 4: Simplify right side
    7,718.50x = 43,662,071.36
  5. Step 5: Solve for x
    x = 43,662,071.36/7,718.50
  6. Step 6: Final answer
    x = 5,656.81

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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.