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Finding the Fourth Proportional to 2,984.30, 4,476.10 and 793.20

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Solution

The fourth proportional to 2,984.30, 4,476.10 and 793.20 is: 1,189.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.30 : 4,476.10 = 793.20 : x
  2. Step 2: Convert to fraction form
    2,984.30/4,476.10 = 793.20/x
  3. Step 3: Cross multiply
    2,984.30x = 4,476.10 × 793.20
  4. Step 4: Simplify right side
    2,984.30x = 3,550,442.52
  5. Step 5: Solve for x
    x = 3,550,442.52/2,984.30
  6. Step 6: Final answer
    x = 1,189.71

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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.