Home / 2,149.90-2,964.93-1,392.92

Finding the Fourth Proportional to 2,149.90, 2,964.93 and 1,392.92

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Solution

The fourth proportional to 2,149.90, 2,964.93 and 1,392.92 is: 1,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.90 : 2,964.93 = 1,392.92 : x
  2. Step 2: Convert to fraction form
    2,149.90/2,964.93 = 1,392.92/x
  3. Step 3: Cross multiply
    2,149.90x = 2,964.93 × 1,392.92
  4. Step 4: Simplify right side
    2,149.90x = 4,129,890.45
  5. Step 5: Solve for x
    x = 4,129,890.45/2,149.90
  6. Step 6: Final answer
    x = 1,920.96

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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.