Home / 2,129.34-2,939.96-1,333.02

Finding the Fourth Proportional to 2,129.34, 2,939.96 and 1,333.02

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Solution

The fourth proportional to 2,129.34, 2,939.96 and 1,333.02 is: 1,840.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.34 : 2,939.96 = 1,333.02 : x
  2. Step 2: Convert to fraction form
    2,129.34/2,939.96 = 1,333.02/x
  3. Step 3: Cross multiply
    2,129.34x = 2,939.96 × 1,333.02
  4. Step 4: Simplify right side
    2,129.34x = 3,919,025.48
  5. Step 5: Solve for x
    x = 3,919,025.48/2,129.34
  6. Step 6: Final answer
    x = 1,840.49

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