Home / 2,964.87-4,091.67-1,638.69

Finding the Fourth Proportional to 2,964.87, 4,091.67 and 1,638.69

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Solution

The fourth proportional to 2,964.87, 4,091.67 and 1,638.69 is: 2,261.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.87 : 4,091.67 = 1,638.69 : x
  2. Step 2: Convert to fraction form
    2,964.87/4,091.67 = 1,638.69/x
  3. Step 3: Cross multiply
    2,964.87x = 4,091.67 × 1,638.69
  4. Step 4: Simplify right side
    2,964.87x = 6,704,978.71
  5. Step 5: Solve for x
    x = 6,704,978.71/2,964.87
  6. Step 6: Final answer
    x = 2,261.47

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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.