Home / 7,341.42-11,012.22-2,147.40

Finding the Fourth Proportional to 7,341.42, 11,012.22 and 2,147.40

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Solution

The fourth proportional to 7,341.42, 11,012.22 and 2,147.40 is: 3,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,341.42 : 11,012.22 = 2,147.40 : x
  2. Step 2: Convert to fraction form
    7,341.42/11,012.22 = 2,147.40/x
  3. Step 3: Cross multiply
    7,341.42x = 11,012.22 × 2,147.40
  4. Step 4: Simplify right side
    7,341.42x = 23,647,641.23
  5. Step 5: Solve for x
    x = 23,647,641.23/7,341.42
  6. Step 6: Final answer
    x = 3,221.13

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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.