Home / 1,905.17-2,851.43-1,676.81

Finding the Fourth Proportional to 1,905.17, 2,851.43 and 1,676.81

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Solution

The fourth proportional to 1,905.17, 2,851.43 and 1,676.81 is: 2,509.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.17 : 2,851.43 = 1,676.81 : x
  2. Step 2: Convert to fraction form
    1,905.17/2,851.43 = 1,676.81/x
  3. Step 3: Cross multiply
    1,905.17x = 2,851.43 × 1,676.81
  4. Step 4: Simplify right side
    1,905.17x = 4,781,305.08
  5. Step 5: Solve for x
    x = 4,781,305.08/1,905.17
  6. Step 6: Final answer
    x = 2,509.64

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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.