Home / 7,742.21-10,685.81-4,597.79

Finding the Fourth Proportional to 7,742.21, 10,685.81 and 4,597.79

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Solution

The fourth proportional to 7,742.21, 10,685.81 and 4,597.79 is: 6,345.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.21 : 10,685.81 = 4,597.79 : x
  2. Step 2: Convert to fraction form
    7,742.21/10,685.81 = 4,597.79/x
  3. Step 3: Cross multiply
    7,742.21x = 10,685.81 × 4,597.79
  4. Step 4: Simplify right side
    7,742.21x = 49,131,087.37
  5. Step 5: Solve for x
    x = 49,131,087.37/7,742.21
  6. Step 6: Final answer
    x = 6,345.87

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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.