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Finding the Fourth Proportional to 7,281.09, 10,922.21 and 2,600.91

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Solution

The fourth proportional to 7,281.09, 10,922.21 and 2,600.91 is: 3,901.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.09 : 10,922.21 = 2,600.91 : x
  2. Step 2: Convert to fraction form
    7,281.09/10,922.21 = 2,600.91/x
  3. Step 3: Cross multiply
    7,281.09x = 10,922.21 × 2,600.91
  4. Step 4: Simplify right side
    7,281.09x = 28,407,681.96
  5. Step 5: Solve for x
    x = 28,407,681.96/7,281.09
  6. Step 6: Final answer
    x = 3,901.57

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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.