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Finding the Fourth Proportional to 7,008.09, 9,671.03 and 3,821.41

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Solution

The fourth proportional to 7,008.09, 9,671.03 and 3,821.41 is: 5,273.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.09 : 9,671.03 = 3,821.41 : x
  2. Step 2: Convert to fraction form
    7,008.09/9,671.03 = 3,821.41/x
  3. Step 3: Cross multiply
    7,008.09x = 9,671.03 × 3,821.41
  4. Step 4: Simplify right side
    7,008.09x = 36,956,970.75
  5. Step 5: Solve for x
    x = 36,956,970.75/7,008.09
  6. Step 6: Final answer
    x = 5,273.47

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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.