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Finding the Fourth Proportional to 3,980.57, 5,970.08 and 3,783.01

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Solution

The fourth proportional to 3,980.57, 5,970.08 and 3,783.01 is: 5,673.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.57 : 5,970.08 = 3,783.01 : x
  2. Step 2: Convert to fraction form
    3,980.57/5,970.08 = 3,783.01/x
  3. Step 3: Cross multiply
    3,980.57x = 5,970.08 × 3,783.01
  4. Step 4: Simplify right side
    3,980.57x = 22,584,842.49
  5. Step 5: Solve for x
    x = 22,584,842.49/3,980.57
  6. Step 6: Final answer
    x = 5,673.77

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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.