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Finding the Fourth Proportional to 3,783.70, 5,301.50 and 3,783.70

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Solution

The fourth proportional to 3,783.70, 5,301.50 and 3,783.70 is: 5,301.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.70 : 5,301.50 = 3,783.70 : x
  2. Step 2: Convert to fraction form
    3,783.70/5,301.50 = 3,783.70/x
  3. Step 3: Cross multiply
    3,783.70x = 5,301.50 × 3,783.70
  4. Step 4: Simplify right side
    3,783.70x = 20,059,285.55
  5. Step 5: Solve for x
    x = 20,059,285.55/3,783.70
  6. Step 6: Final answer
    x = 5,301.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.