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Finding the Fourth Proportional to 7,391.80, 10,200.60 and 4,034.50

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Solution

The fourth proportional to 7,391.80, 10,200.60 and 4,034.50 is: 5,567.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.80 : 10,200.60 = 4,034.50 : x
  2. Step 2: Convert to fraction form
    7,391.80/10,200.60 = 4,034.50/x
  3. Step 3: Cross multiply
    7,391.80x = 10,200.60 × 4,034.50
  4. Step 4: Simplify right side
    7,391.80x = 41,154,320.70
  5. Step 5: Solve for x
    x = 41,154,320.70/7,391.80
  6. Step 6: Final answer
    x = 5,567.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.