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Finding the Fourth Proportional to 7,321.74, 10,984.30 and 2,391.74

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Solution

The fourth proportional to 7,321.74, 10,984.30 and 2,391.74 is: 3,588.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.74 : 10,984.30 = 2,391.74 : x
  2. Step 2: Convert to fraction form
    7,321.74/10,984.30 = 2,391.74/x
  3. Step 3: Cross multiply
    7,321.74x = 10,984.30 × 2,391.74
  4. Step 4: Simplify right side
    7,321.74x = 26,271,611.16
  5. Step 5: Solve for x
    x = 26,271,611.16/7,321.74
  6. Step 6: Final answer
    x = 3,588.16

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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.