Home / 2,964.63-4,091.13-1,638.30

Finding the Fourth Proportional to 2,964.63, 4,091.13 and 1,638.30

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Solution

The fourth proportional to 2,964.63, 4,091.13 and 1,638.30 is: 2,260.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.63 : 4,091.13 = 1,638.30 : x
  2. Step 2: Convert to fraction form
    2,964.63/4,091.13 = 1,638.30/x
  3. Step 3: Cross multiply
    2,964.63x = 4,091.13 × 1,638.30
  4. Step 4: Simplify right side
    2,964.63x = 6,702,498.28
  5. Step 5: Solve for x
    x = 6,702,498.28/2,964.63
  6. Step 6: Final answer
    x = 2,260.82

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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.