Home / 7,148.79-10,722.67-2,218.30

Finding the Fourth Proportional to 7,148.79, 10,722.67 and 2,218.30

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Solution

The fourth proportional to 7,148.79, 10,722.67 and 2,218.30 is: 3,327.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.79 : 10,722.67 = 2,218.30 : x
  2. Step 2: Convert to fraction form
    7,148.79/10,722.67 = 2,218.30/x
  3. Step 3: Cross multiply
    7,148.79x = 10,722.67 × 2,218.30
  4. Step 4: Simplify right side
    7,148.79x = 23,786,098.86
  5. Step 5: Solve for x
    x = 23,786,098.86/7,148.79
  6. Step 6: Final answer
    x = 3,327.29

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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.