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Finding the Fourth Proportional to 3,980.07, 5,970.14 and 2,520.24

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Solution

The fourth proportional to 3,980.07, 5,970.14 and 2,520.24 is: 3,780.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.07 : 5,970.14 = 2,520.24 : x
  2. Step 2: Convert to fraction form
    3,980.07/5,970.14 = 2,520.24/x
  3. Step 3: Cross multiply
    3,980.07x = 5,970.14 × 2,520.24
  4. Step 4: Simplify right side
    3,980.07x = 15,046,173.03
  5. Step 5: Solve for x
    x = 15,046,173.03/3,980.07
  6. Step 6: Final answer
    x = 3,780.38

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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.