Home / 7,021.56-10,530.18-2,641.08

Finding the Fourth Proportional to 7,021.56, 10,530.18 and 2,641.08

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Solution

The fourth proportional to 7,021.56, 10,530.18 and 2,641.08 is: 3,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.56 : 10,530.18 = 2,641.08 : x
  2. Step 2: Convert to fraction form
    7,021.56/10,530.18 = 2,641.08/x
  3. Step 3: Cross multiply
    7,021.56x = 10,530.18 × 2,641.08
  4. Step 4: Simplify right side
    7,021.56x = 27,811,047.79
  5. Step 5: Solve for x
    x = 27,811,047.79/7,021.56
  6. Step 6: Final answer
    x = 3,960.81

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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.