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Finding the Fourth Proportional to 4,840, 7,246.23 and 3,191.52

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Solution

The fourth proportional to 4,840, 7,246.23 and 3,191.52 is: 4,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,840 : 7,246.23 = 3,191.52 : x
  2. Step 2: Convert to fraction form
    4,840/7,246.23 = 3,191.52/x
  3. Step 3: Cross multiply
    4,840x = 7,246.23 × 3,191.52
  4. Step 4: Simplify right side
    4,840x = 23,126,487.97
  5. Step 5: Solve for x
    x = 23,126,487.97/4,840
  6. Step 6: Final answer
    x = 4,778.20

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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.